Chapter 15 Probability

Chapter 15 Probability
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Chapter 15 Probability

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In the following figure ABCD is a cyclic quadrilateral, the sum of degree measures of ∠A and ∠D is: (SOURCE: Fig. 3.7, Exercise 3.7, Chapter 3, PAIR of LINEAR EQUATIONS in TWO VARIABLES, NCERT, Class X) (a) 120° (b) 180° (c) 230°(d) 250°

Description : In the following figure ABCD is a cyclic quadrilateral, the sum of degree measures of ∠A and ∠D is: (SOURCE: Fig. 3.7, Exercise 3.7, Chapter 3, PAIR of LINEAR EQUATIONS in TWO VARIABLES, NCERT, Class X) (a) 120° (b) 180° (c) 230°(d) 250°

Last Answer : (c) 230°

Chapter 14 Statistics

Description : Chapter 14 Statistics

Last Answer : Chapter 14 Statistics

Chapter 13 Surface Areas and Volumes

Description : Chapter 13 Surface Areas and Volumes

Last Answer : Chapter 13 Surface Areas and Volumes

Chapter 12 Areas Related to Circles

Description : Chapter 12 Areas Related to Circles

Last Answer : Chapter 12 Areas Related to Circles

Chapter 11 Constructions

Description : Chapter 11 Constructions

Last Answer : Chapter 11 Constructions

Chapter 10 Circles

Description : Chapter 10 Circles

Last Answer : Chapter 10 Circles

Chapter 9 Some Applications of Trigonometry

Description : Chapter 9 Some Applications of Trigonometry

Last Answer : Chapter 9 Some Applications of Trigonometry

Chapter 8 Introduction to Trigonometry

Description : Chapter 8 Introduction to Trigonometry

Last Answer : Chapter 8 Introduction to Trigonometry

Chapter 7 Coordinate Geometry

Description : Chapter 7 Coordinate Geometry

Last Answer : Chapter 7 Coordinate Geometry

Chapter 6 Triangles

Description : Chapter 6 Triangles

Last Answer : Chapter 6 Triangles

Chapter 5 Arithmetic Progressions

Description : Chapter 5 Arithmetic Progressions

Last Answer : Chapter 5 Arithmetic Progressions

Chapter 4 Quadratic Equations

Description : Chapter 4 Quadratic Equations

Last Answer : Chapter 4 Quadratic Equations

Chapter 3 Pair of Linear Equations in Two Variables

Description : Chapter 3 Pair of Linear Equations in Two Variables

Last Answer : Chapter 3 Pair of Linear Equations in Two Variables

Chapter 2 Polynomials

Description : Chapter 2 Polynomials

Last Answer : Chapter 2 Polynomials

Chapter 1 Real Numbers

Description : Chapter 1 Real Numbers

Last Answer : Chapter 1 Real Numbers

What is the probability of getting two pinks balls?

Description : What is the probability of getting two pinks balls?

Last Answer : Wow. There are two ways of solving this question. One way uses recursive probability theory and the other way uses an elegant guess. Wrong site for mathematics questions?

How to calculate the probability of a set of events ?

Description : How to calculate the probability of a set of events ?

Last Answer : answer:The probability of each outcome in a coin toss is 50% (½) because there are only two possibilities. How many possibilities are there if we toss the coin twice? Four. It can be HH, HT, TH, or ... -recursive for the first two and Fibonacci for the third, which is also the last on the page).

In a family of 3 children, probability of having at least one boy is: a. 7/8 b. 1/8 c. 5/8 d. 3/8

Description : In a family of 3 children, probability of having at least one boy is: a. 7/8 b. 1/8 c. 5/8 d. 3/8

Last Answer : a. 7/8

The probability that a man can hit a target is 2/3. The probability that he misses the target is ........ a. 1/2b. 1/4 c. 1/3 d. 3/4

Description : The probability that a man can hit a target is 2/3. The probability that he misses the target is ........ a. 1/2b. 1/4 c. 1/3 d. 3/4

Last Answer : c. 1/3

Now it was Ravi‘s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is greater than 8? a. 1 b. 5/36 c. 1/18 d. 5/18

Description : Now it was Ravi‘s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is greater than 8? a. 1 b. 5/36 c. 1/18 d. 5/18

Last Answer : d. 5/18

Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is equal to 7? a. 5/9 b. 5/36 c. 1/6 d. 0

Description : Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is equal to 7? a. 5/9 b. 5/36 c. 1/6 d. 0

Last Answer : c. 1/6

Now it was Ravi‘s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is less than or equal to 12? a. 1 b. 5/36 c. 1/18 d. 0

Description : Now it was Ravi‘s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is less than or equal to 12? a. 1 b. 5/36 c. 1/18 d. 0

Last Answer : a. 1

Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is 13? a. 1 b. 5/36 c. 1/18 d. 0

Description : Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is 13? a. 1 b. 5/36 c. 1/18 d. 0

Last Answer : d. 0

Find the probability of getting a spade. A. 1/26 B. 1/13 C. 1/52 D. 1/4

Description : Find the probability of getting a spade. A. 1/26 B. 1/13 C. 1/52 D. 1/4

Last Answer : D. 1/4

Find the probability of getting a red face card. A. 3/26 B. 1/13 C. 1/52 D. 1/4

Description : Find the probability of getting a red face card. A. 3/26 B. 1/13 C. 1/52 D. 1/4

Last Answer : A. 3/26

Find the probability of getting a jack of hearts. A. 1/26 B. 1/52 C. 3/52 D. 3/26

Description : Find the probability of getting a jack of hearts. A. 1/26 B. 1/52 C. 3/52 D. 3/26

Last Answer : B. 1/52

Find the probability of getting a face card. A. 1/26 B. 1/13 C. 2/13 D. 3/13

Description : Find the probability of getting a face card. A. 1/26 B. 1/13 C. 2/13 D. 3/13

Last Answer : B. 1/13

Nine playing cards are numbered 2 to 10. A card is selected at random. What is the probability that the card will be an odd number? a. 1/9 b. 2/9 c. 4/9 d. 3/7

Description : Nine playing cards are numbered 2 to 10. A card is selected at random. What is the probability that the card will be an odd number? a. 1/9 b. 2/9 c. 4/9 d. 3/7

Last Answer : c. 4/9

What is the probability of a non -occurrence of an event that is certain to happen? a. 0 b. 1 c. -1 d. 2

Description : What is the probability of a non -occurrence of an event that is certain to happen? a. 0 b. 1 c. -1 d. 2

Last Answer : a. 0

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

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

Last Answer : b. 3/5

In a village fair, Gopal set up a stall of game consisting of spinning an arrow which comes to rest pointing at one of the regions 1, 2 or 3. Find the probability of outcome 1.a. 1/3 b. 1/2 c. 1/4 d. 1/6

Description : In a village fair, Gopal set up a stall of game consisting of spinning an arrow which comes to rest pointing at one of the regions 1, 2 or 3. Find the probability of outcome 1.a. 1/3 b. 1/2 c. 1/4 d. 1/6

Last Answer : b. 1/2

A ship is reported to reach somewhere in the region as shown in figure. What is the probability that the ship reach in the shaded region. a. 11/67 b. 13/81 c. 1/77 d. 11/113

Description : A ship is reported to reach somewhere in the region as shown in figure. What is the probability that the ship reach in the shaded region. a. 11/67 b. 13/81 c. 1/77 d. 11/113

Last Answer : c. 1/77

Two dice are thrown together. Find the probability that the sum of the numbers obtained is even a. 1/4 b. 1/6 c. 1/3 d. 1/2

Description : Two dice are thrown together. Find the probability that the sum of the numbers obtained is even a. 1/4 b. 1/6 c. 1/3 d. 1/2

Last Answer : d. 1/2

Probability of a sure event is a. -1 b. 1 c. 0 d. 2

Description : Probability of a sure event is a. -1 b. 1 c. 0 d. 2

Last Answer : b. 1

A dice is thrown once, what is the probability of getting a prime number? a. 1/3 b. 6/25 c. 1/2 d. 1/4

Description : A dice is thrown once, what is the probability of getting a prime number? a. 1/3 b. 6/25 c. 1/2 d. 1/4

Last Answer : c. 1/2

All red face cards are removed from a pack of playing cards. The remaining cards are well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is face card. a. 2/23 b. 7/44 c. 3/23 d. 4/25

Description : All red face cards are removed from a pack of playing cards. The remaining cards are well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is face card. a. 2/23 b. 7/44 c. 3/23 d. 4/25

Last Answer : c. 3/23

A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4. a. 3/25 b. 2/25 c. 1/25 d. 13/50

Description : A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4. a. 3/25 b. 2/25 c. 1/25 d. 13/50

Last Answer : b. 2/25

Three cards are drawn at random from an ordinary pack of cards. Find out the probability that they will consist of a king, aqueen and an ace?

Description : Three cards are drawn at random from an ordinary pack of cards. Find out the probability that they will consist of a king, aqueen and an ace?

Last Answer : Answer: 64/2210.

MCQ Questions for Class 9 Maths Chapter 15 Probability with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 15 Probability with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 15 Probability Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These ... . These Probability MCQ Questions will help you in practising more and more questions in less time.

Cbqs (case base study ) of chapter 15 Probability of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 15 Probability of maths class 9th -Maths 9th

Last Answer : answer:

How many combinations with three different colored die can you make the sum 15?

Description : How many combinations with three different colored die can you make the sum 15?

Last Answer : 10. Try it for yourself and see.

The largest number that will divide 398,436 and 542 leaving remainders 7,11 and 15 respectively is(a) 17 (b) 11 (c) 34 (d) 45

Description : The largest number that will divide 398,436 and 542 leaving remainders 7,11 and 15 respectively is(a) 17 (b) 11 (c) 34 (d) 45

Last Answer : (a) 17

In a square of side 10 cm, its diagonal is equal to (a) 15 cm (b) 10√2 cm (c) 20 cm (d) 12 cm

Description : In a square of side 10 cm, its diagonal is equal to (a) 15 cm (b) 10√2 cm (c) 20 cm (d) 12 cm

Last Answer : (b) 10√2 cm

The value of quadratic polynomial f (x) = 2x 2 – 3x- 2 at x = -2 is ...... (a) 12 (b) 15 (c) -12 (d) 16

Description : The value of quadratic polynomial f (x) = 2x 2 – 3x- 2 at x = -2 is ...... (a) 12 (b) 15 (c) -12 (d) 16

Last Answer : (a) 12

What is the value of x, y in the following pair of linear equations: 4x + = 15 , 6x – = 14 ? (a) 3,2 (b) -3,-2 (c) 3,-2 (d) -3,2

Description : What is the value of x, y in the following pair of linear equations: 4x + = 15 , 6x – = 14 ? (a) 3,2 (b) -3,-2 (c) 3,-2 (d) -3,2

Last Answer : (a) 3,2

What is the value of x, y in the following pair of linear equations: 4x + = 15 , 6x – = 14 ? (a) 3,2 (b) -3,-2 (c) 3,-2 (d) -3,2

Description : What is the value of x, y in the following pair of linear equations: 4x + = 15 , 6x – = 14 ? (a) 3,2 (b) -3,-2 (c) 3,-2 (d) -3,2

Last Answer : (a) 3,2

The endpoint A of a line segment AB is (3 , -1). If midpoint of AB is (5,7) then the coordinates of the point B are: (a) (7,13) (b) (7,15) (c) (4,3) (d) (4,4)

Description : The endpoint A of a line segment AB is (3 , -1). If midpoint of AB is (5,7) then the coordinates of the point B are: (a) (7,13) (b) (7,15) (c) (4,3) (d) (4,4)

Last Answer : (b) (7,15)

A boat is rowed downstream at 15.5 km/h and upstream at 8.5 km/h. The speed of the stream is: (a) 3.5 km/h (b) 5.75 km/h (c) 6.5 km/h (d) 7 km/h

Description : A boat is rowed downstream at 15.5 km/h and upstream at 8.5 km/h. The speed of the stream is: (a) 3.5 km/h (b) 5.75 km/h (c) 6.5 km/h (d) 7 km/h

Last Answer : (a) 3.5 km/h

If angle A is acute and cos A = 8/17 then cot A is : (a) 8/15 (b) 17/8 (c) 15/8 (d) 17/15

Description : If angle A is acute and cos A = 8/17 then cot A is : (a) 8/15 (b) 17/8 (c) 15/8 (d) 17/15

Last Answer : (a) 8/15

If cos 2α = 1⁄2 ,then α is a 15 0 b 30 0 c 60 0 d 0 0

Description : If cos 2α = 1⁄2 ,then α is a 15 0 b 30 0 c 60 0 d 0 0

Last Answer : b 30 0