EASY

12th Andhra Pradesh Board

IMPORTANT

Earn 100

Find the minimum number of times a fair coin must be tossed so that the probability of getting at least one head is at least $0.8$ and find $P (X = 0)$ for the obtained $n$ value.

Important Questions on Random Variables and Probability Distributions

EASY

12th Andhra Pradesh Board

IMPORTANT

Intermediate Second Year Mathematics Paper 2A>Chapter 10 - Random Variables and Probability Distributions>Exercise 10(b)>Q I

The probability of a bomb hitting a bridge is

\frac{1}{2}

and three direct hits (not necessarily consecutive) are needed to destroy it. Find the minimum number of bombs required so that the probability of the bridge being destroyed is greater than

0.9

EASY

12th Andhra Pradesh Board

IMPORTANT

Intermediate Second Year Mathematics Paper 2A>Chapter 10 - Random Variables and Probability Distributions>Exercise 10(b)>Q I

If the difference between the mean and the variance of a binomial variate is

\frac{5}{9}

then, find the probability for the event of

2

successes when the experiment is conducted

5

times.

EASY

12th Andhra Pradesh Board

IMPORTANT

Intermediate Second Year Mathematics Paper 2A>Chapter 10 - Random Variables and Probability Distributions>Exercise 10(b)>Q I

One in

9

ships is likely to be wrecked, when they are set on sail, when

6

ships are on sail find the probability for atleast one will arrive safely.

EASY

12th Andhra Pradesh Board

IMPORTANT

Intermediate Second Year Mathematics Paper 2A>Chapter 10 - Random Variables and Probability Distributions>Exercise 10(b)>Q I

One in

9

ships is likely to be wrecked, when they are set on sail, when

6

ships are on sail find the probability for exactly three will arrive safely.

EASY

12th Andhra Pradesh Board

IMPORTANT

Intermediate Second Year Mathematics Paper 2A>Chapter 10 - Random Variables and Probability Distributions>Exercise 10(b)>Q I

If the mean and variance of a binomial variable

X

are

2.4

and

1.44

respectively, find

P (1 < X \leq 4)

EASY

12th Andhra Pradesh Board

IMPORTANT

Intermediate Second Year Mathematics Paper 2A>Chapter 10 - Random Variables and Probability Distributions>Exercise 10(b)>Q I

It is given that

10 %

of the electric bulbs manufactured by a company are defective. In a sample of

20

bulbs, find the probability that more than

2

are defective.

EASY

12th Andhra Pradesh Board

IMPORTANT

Intermediate Second Year Mathematics Paper 2A>Chapter 10 - Random Variables and Probability Distributions>Exercise 10(b)>Q I

On an average, rain falls on

12

days in every

30

days, find the probability that, rain will fall on just

3

days of a given week.

EASY

12th Andhra Pradesh Board

IMPORTANT

Intermediate Second Year Mathematics Paper 2A>Chapter 10 - Random Variables and Probability Distributions>Exercise 10(b)>Q I

For a binomial distribution with mean

6

and variance

2

, find the first two terms of the distribution.

Find the minimum number of times a fair coin must be tossed so that the probability of getting at least one head is at least 0.8 and find PX=0 for the obtained n value.

Important Questions on Random Variables and Probability Distributions

Learn and Prepare for any exam you want !

Find the minimum number of times a fair coin must be tossed so that the probability of getting at least one head is at least $0.8$ and find $P (X = 0)$ for the obtained $n$ value.