CUET-PG SERIES Economics
Random Variables
7 previous year questions.
Volume: 7 Ques
Yield: Medium
High-Yield Trend
2
2025 5
2023 Chapter Questions 7 MCQs
01
PYQ 2023
medium
economics ID: cuet-pg-
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: For a random variable X which has mean = 10 and variance = 100. the variance of (5x+10) is 2500.
Reason R: Var(ax+b) = Var(x)
and so the variance of (ax+b)
or Var(5x+10) is 100.
In the light of the above statements, choose the correct answer from the options given below:
Assertion A: For a random variable X which has mean = 10 and variance = 100. the variance of (5x+10) is 2500.
Reason R: Var(ax+b) = Var(x)
and so the variance of (ax+b)
or Var(5x+10) is 100.
In the light of the above statements, choose the correct answer from the options given below:
1
Both A and R are true and R is the correct explanation of A
2
Both A and R are true but R is NOT the correct explanation of A
3
A is true but R is false
4
A is false but R is true
02
PYQ 2023
medium
economics ID: cuet-pg-
The possible inflection points for is/are:
1
2
3
4
2
03
PYQ 2023
medium
economics ID: cuet-pg-
Find if
1
2
3
4
04
PYQ 2023
medium
economics ID: cuet-pg-
For a random variable X, E(X-μ)4 = 16 [where μ = E(X)] and E(X-μ)2 = 2. What is the value of Kurtosis for this variable?
1
4
2
8
3
2
4
1
05
PYQ 2023
medium
economics ID: cuet-pg-
1
2
3
4
06
PYQ 2025
medium
economics ID: cuet-pg-
Suppose that the random variable takes on the values: -1, 0, and 2 with probabilities , , and respectively. Find the expected value of .
1
6
2
5.8
3
3.7
4
1
07
PYQ 2025
medium
economics ID: cuet-pg-
If the probability function for a random variable is given as when , find the sum of the values of the probability distribution for .
1
0.75
2
0.85
3
0.95
4
1.0