In a school, 22% of the students are sixth graders. What is the probability that a randomly chosen student will not be a sixth grader?

In a school, 22% of the students are sixth graders. What is the probability that a randomly chosen student will not be a sixth grader?
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50 percent
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Of the 40 randomly chosen students surveyed, 27 are involved in extracurricular activities at school. There are 680 students in the school. Predict the number of students in the school who are involved in extracurricular activities?

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750 families with 3 children were selected randomly and the following data recorded If a family member is chosen at random, compute the probability that it has : -Maths 9th

Description : 750 families with 3 children were selected randomly and the following data recorded If a family member is chosen at random, compute the probability that it has : -Maths 9th

Last Answer : (i) P(no boy child) =100 / 750 = 2 / 15 (ii) P (no girl child) = 120 /750 =4 / 25

750 families with 3 children were selected randomly and the following data recorded If a family member is chosen at random, compute the probability that it has : -Maths 9th

Description : 750 families with 3 children were selected randomly and the following data recorded If a family member is chosen at random, compute the probability that it has : -Maths 9th

Last Answer : (i) P(no boy child) =100 / 750 = 2 / 15 (ii) P (no girl child) = 120 /750 =4 / 25

The average scores of a batch of students in a test is 84. The 36% of students's average score is 57 and 42% of students's score is 84. Then find the average score of remaining 22% of students approximately, A) 128 B) 131 C) 119 D) 106

Description : The average scores of a batch of students in a test is 84. The 36% of students's average score is 57 and 42% of students's score is 84. Then find the average score of remaining 22% of students approximately, A) 128 B) 131 C) 119 D) 106 

Last Answer : Answer: A)  let the number of students be 100, then, 100*84 = 36*57 + 42*84 + 22*x 22x = 8400-2052-3528 x = 128.18

In MSM college, 35% of the students study Tamil and English. 40% of the students study English. What is the probability of a student studying Tamil given he/she is already studying english? A) 0.675 B) 0.580 C) 0.875 D) 0.725

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Last Answer : Answer: C) P(T and E) = 0.35 P(E) = 0.40 P(T/E) = P(T and E)/P(E) = 0.35/0.40 = 0.875

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Last Answer : Answer: A) Given that, 40% play cricket; that is, P(C) = 40/100=4/10 20% play chess; that is, P(c) = 20/100 =2/10 And, 10% play both cricket and chess; that is, P(C And c) = 10/100 = 1/10 Now, we have ... P(C) + P(c) - P(C And c) = 4/20+2/10-1/10 =5/10=1/2 Hence, the required probability 1/2

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Description : In a batch, 40% of the students offered Maths, 30% offered science and 15% offered both. If a student is selected at random, what is the probability that they has offered science or maths? A) 0.55 B) 0.65 C) 0.45 D) 0.75

Last Answer : Answer: A) P(M) = 0.40 P(S) =0.30 and P(M∩S) = 0.15 P(M∪S) = P(M) + P(S) - P(M∩S) = 0.55

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Last Answer : (c) \(rac{4}{1155}\)Let n(S) = Number of ways of selecting 3 numbers from 100 numbers = 100C3 Let E : Event of selecting three numbers divisible by both 2 and 3 from numbers 1 to 100 = Event of selecting three ... C_3}{^{100}C_3}\) = \(rac{16 imes15 imes14}{100 imes99 imes98}\) = \(rac{4}{1155}\).

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Last Answer : We will use Q and P to help solve this problem with Q representing the possibility that none of the randomly selected people are vaccinated and P representing the possibility that at least 1 randomly selected ... -0.0206=0.9794. The probability that at least 1 person has been vaccinated is 0.9794.

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In a recent research study initiated by Tel-E-Fone Telecommunications, survey calls were made to a randomly selected group in which every member has an equal chance of selection. This type of sample selection is called A. Probability sample B. Convenience sample C. Judgment sample D. Quota sample E. Area sample

Description : In a recent research study initiated by Tel-E-Fone Telecommunications, survey calls were made to a randomly selected group in which every member has an equal chance of selection. This type of sample selection ... sample B. Convenience sample C. Judgment sample D. Quota sample E. Area sample

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Description :  A box contains 5 cone and 4 chocobar ice-creams. Preethi eats 3 of them, by randomly choosing. What is the probability of choosing 1 chocobar and 2 cone ice-creams? a) 63/10 b) 20/63 c) 10/63 d) 63/20

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I love teaching fifth grade, but have been asked to teach eighth grade English at the same school. I'd focus on reading and writing, my passions, but wonder if I'd connect to eighth graders the way I do to fifth graders. Any ideas?

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ia their a military school in colorado for 1st graders?

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Last Answer : As there are 200 integers, total number of exhaustive, mutually exclusive and equally likely cases, i.e, n(S) = 200 Let A : Event of integer chosen from 1 to 200 being divisible by 6⇒ n(A) = 33 \(\bigg(rac{200}{6}=33rac{1}{3}\ ... (rac{25}{200}\) - \(rac{8}{200}\) = \(rac{50}{200}\) = \(rac{1}{4}\).

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Last Answer : The chosen consists of players (6 + 5). ∴ Number of ways of selecting 11 players out of 15 players = n(S) = 15C11 Let A : Event of choosing 6 batsmen of 8 batsmen and 5 bowlers of 7 bowlers Then, n(A) = 8C6 ... 7 imes6}{2}\) x \(rac{4 imes3 imes2 imes1}{15 imes14 imes13 imes12}\) = \(rac{28}{65}.\)

A natural number is chosen at random from amongst the first 300. What is the probability that the number chosen is a multiple of 2 or 3 or 5 ? -Maths 9th

Description : A natural number is chosen at random from amongst the first 300. What is the probability that the number chosen is a multiple of 2 or 3 or 5 ? -Maths 9th

Last Answer : (b) \(rac{11}{15}\)n(S) = 300 Let A : Event of getting a number divisible by 2 B : Event of getting a number divisible by 3 C : Event of getting a number divisible by 5 ∴ A ∩ B : Event of getting a number divisible by ... \(rac{320}{300}\) - \(rac{100}{300}\) = \(rac{220}{300}\) = \(rac{11}{15}\).

Three of the six vertices of a regular hexagon are chosen at random. The probability that the triangle with these vertices is equilateral equals : -Maths 9th

Description : Three of the six vertices of a regular hexagon are chosen at random. The probability that the triangle with these vertices is equilateral equals : -Maths 9th

Last Answer : (c) \(rac{1}{10}\)Let S be the sample space.Then n(S) = Number of triangles formed by selecting any three vertices of 6 vertices of a regular hexagon= 6C3 = \(rac{6 imes5 imes4}{3 imes2}\) = 20.Let A : Event that the ... Required probability = \(rac{n(A)}{n(S)}\) = \(rac{2}{20}\) = \(rac{1}{10}\).

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What number is chosen at random from 1 to 10. Find the probability of not selecting a multiple of 2 or a multiple of3?

Description : What number is chosen at random from 1 to 10. Find the probability of not selecting a multiple of 2 or a multiple of3?

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Description : If truly random find the probability of Sue not being chosen to cook dinner 4 nights in a row if there are 3 total that can cook.?

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Description : If a number x is chosen at random from the numbers -2, -1, 0 1, 2. What is the probability that x 2 < 2? a. 2/5 b. 3/5 c. 1/4 d. 4/7

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A cartoon contains 15 torch lights out of which 3 are defective. Two torch light are chosen at random from this cartoon. The probability that at least one of these is defective is. A) 13/35 B) 14/35 C) 11/35 D) 17/35

Description : A cartoon contains 15 torch lights out of which 3 are defective. Two torch light are chosen at random from this cartoon. The probability that at least one of these is defective is. A) 13/35 B) 14/35 C) 11/35 D) 17/35

Last Answer : Answer: A) P (none is defective) = 12c2/15c2 = (12*11/2*1)/(15*14/2*1) = 66/105=22/35 P (at least one is defective) = (1 – 22/35) =13/35

There are 2 vessels. 1st vessel contains 5white and 5 blue thread roll. 2nd vessel contains 4 white and 6 black thread roll. One roll is taken at random from first vessel and put to second vessel without noticing its color. Now a roll is chosen at random from 2nd vessel. What is the probability of the second roll being a white colored roll? A) 11/13 B) 9/11 C) 13/11 D) 5/12

Description : There are 2 vessels. 1st vessel contains 5white and 5 blue thread roll. 2nd vessel contains 4 white and 6 black thread roll. One roll is taken at random from first vessel and put to second vessel without noticing its color ... second roll being a white colored roll? A) 11/13 B) 9/11 C) 13/11 D) 5/12

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How can a fifth grader in the US can take admission in an India CBSE school in middle of a session?

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Last Answer : answer:I live in the US, but I've had a fair amount of experience with foreign students in private schools. I'm also not sure if this is a government or private school that your child would be going ... could start at the end of a break, so he could begin the coursework with all the other children.

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Why arrest this Utah 6th grader for bringing a gun to school as defense for possible attack?

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Is it ok to let a 3rd grader walk home from school alone?

Description : Is it ok to let a 3rd grader walk home from school alone?

Last Answer : Yes, i think it is okay, depending on where the kid treads on its way to school. Consider the distance, the Crime rate and the traffic conditions that apply to the path it takes to school and then ... yourself if it is safe. My parents sent me off alone to school in 1st grade right after start.

In an examination there are 3 multiple choice questions and each question has 4 choices. If a student randomly selects answer for all -Maths 9th

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The square of one-sixth of the number of students in a class are studying in the library and the remaining eight students are playing in the ground. W

Description : The square of one-sixth of the number of students in a class are studying in the library and the remaining eight students are playing in the ground. W

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A highschool has a strange principal. on the first day of school he does something weird. There are 1000 lockers and 1000 students. He tells the first student to open every first locker. The second student to open every second locker, and if it is open, to close it. He tells the third student to open every third locker, and if it is open, to close it. He does this until all the students have done it. How many lockers are open at the end? -Riddles

Description : A highschool has a strange principal. on the first day of school he does something weird. There are 1000 lockers and 1000 students. He tells the first student to open every first locker. The second student ... this until all the students have done it. How many lockers are open at the end? -Riddles

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Ramesh is a student of standard X. He organized many activities in his school to convey the students about the various advantages and disadvantages of using renewable and non-renewable sources of energy. Many students of the school took part and concluded about the best choices of energy sources on this basis. Answer the following questions: (i) What activities Ramesh might have had assigned for the students? (ii) Name any two renewable sources of energy. (in) Which two values are reflected in Ramesh’s thought and action? -Science

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Last Answer : (i) Activities that Ramesh have had assigned for the students are: (a) Hands on projects related to renewable and non-renewable sources of energy. (b) Photograph exhibitions on the topic ... of renewable source of energy. Ramesh’s action: Concern for community advantage and good management.

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Do you feel it's a teacher's place to tell a classroom of 3rd graders that Santa and the Easter Bunny aren't real?

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Description : I need help with making a fun lesson plan for fourth graders to learn place value through hundred thousands?

Last Answer : Make a sea serpent with humps to count the places below the decimal place. As the numbers get smaller the sea monsters humps get greater. Use colored chalk and start at the head. Make it dramatic and spread it across the whole blackboard.

What are fun developmental milestones for almost-1st graders?

Description : What are fun developmental milestones for almost-1st graders?

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Description : What is a meaningful art project for 6th graders for an after math assessment activity?

Last Answer : answer:Teach them about simple Euclidan fractals (constructing using reciprocal iterations of a single linear or quadratic equation), then have them make designs using crayons & multiple fractals? Or have them make ... of negative one might look like. Or have them solve for pi. Over and over again.

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Description : What are some hands-on ways to teach perimeter to third graders?

Last Answer : String. Have them make shapes with string, then they can straighten out the string and find out the total perimeter of each shape.

What are some fraction games to teach to my 6th graders?

Description : What are some fraction games to teach to my 6th graders?

Last Answer : Well, you could install Edubuntu Linux, which is intended for school kids, and contains many educational programs. You can also try this.

My 3rd graders got a collection letter....what will happen???

Description : My 3rd graders got a collection letter....what will happen???

Last Answer : This had few points of interest and ways to fight the collectors. Good luck to you. http://www.bankrate.com/brm/news/cc/20030519c1.asp

What projects can I do with my 6th graders on Greek Mythology?

Description : What projects can I do with my 6th graders on Greek Mythology?

Last Answer : In high school, we made home videos of Roman mythology. And I have to say, I have never had more fun doing an assignment than those videos. Plus, I remember Roman mythology better after seeing and making some hilarious videos.

Great end of the year projects for 6th graders?

Description : Great end of the year projects for 6th graders?

Last Answer : answer:How about making rain barrels? Contact your local Stormwater utilities (municipal) for information. Directions are here: http://www.epa.gov/region3/p2/make-rainbarrel.pdf You can contact a ... , the best part (apart from teaching about water conservation) is letting the students decorate it!

Do you have any suggestions for a book selection for a book club for 3rd graders?

Description : Do you have any suggestions for a book selection for a book club for 3rd graders?

Last Answer : Frindle by Andrew Clements - almost anything by Andrew Clements. Farmer Boy by Laura Ingalls-Wilder. Believe it or not, the Little House books are great for boys and girls, Pa is always building something ... almost anything by Jerry Spinelli. I could probably go on and on, but I'll stop there!