Test: Theoretical Distributions- 5 - CA Foundation MCQ

Probability function is known as

The no. of points obtained in a single throw of an unbiased die follow :

The no of points in a single throw of an unbiased die has frequency function

In uniform distribution random variable x assumes n values with

In a discrete random variable x follows uniform distribution and assumes only the values 8 , 9, 11, 15, 18, 20. Then P(x = 9) is

In a discrete random variable x follows uniform distribution and assumes only the values 8 , 9, 11, 15, 18, 20. Then P(x = 12) is

In a discrete random variable x follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20. Then P(x < 15) is

In a discrete random variable x follows uniform distribution and assumes only the values 8 , 9, 11, 15, 18, 20. Then P  is

In a discrete random variable x follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20. Then P(x > 15) is

In a discrete random variable x follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20. Then P(|x – 14| < 5) is

When f(x)= 1/n then mean is

In continuous probability distribution P  means

In continuous probability distribution F(x) is called.

The probability density function of a continuous random variable is y = k(x–1),  then the value of the constant k is

 When f(x) = 1/n then mean is 

 In continuous probability distribution P(x ≤ t) means 

 In a discrete random variable x follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20. Then P( x > 15) is 

In a discrete random variable x follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20. Then P (x ≤ 15) is 

The probability function of a continuous random variable is y = k ( x - 1), (1 ≤ x ≤ 2) then the value of the constant k is 

The no of points in a single throw of an unbiased die has frequency function 

 In a discrete random variable x follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20. Then P(|x - 14| < 5) is 

In a discrete random variable x follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20. Then P( = 9) is 

The number of points obtained in a single throw of an unbiased die follows:

In uniform distribution random variable x assumes n values with 

Out of 128 families with 4 children each, how many are expected to have at least one boy and one girl?

 If the weekly of 5000 workers in a factory follows normal distribution with mean and SD as Rs.700 and Rs.50 respectively, what is the expected number of workers with wages between Rs.660 and Rs.720?

 A car hire firm has 2 cars which is hired out everyday. The number of demands per day for a car follows Poisson distribution with mean 1.20. What is the proportion of days on which some demand is refused?(Given e ^1.20 = 3.32).