Random Variable And Probability Distributions MCQs

Option A: On random variable X

Option B: Its parameter

Option C: Mean

Option D: Variance

Correct Answer: Its parameter ✔

Option A: Positively skewed

Option B: Negative skwed

Option C: Symmeteric 

Option D: No shape

Correct Answer: Symmeteric  ✔

Option A: Positively skewed

Option B: Negatively skewed 

Option C: Symmetric

Option D: Bell shaped

Correct Answer: Negatively skewed  ✔

Option A: Gamma distribution

Option B: Binomial distribution

Option C: Negative binomial dis

Option D: Possion distribution 

Correct Answer: Possion distribution  ✔

Option A: Possion distribution

Option B: Exponential distribution 

Option C: Gamma distribution

Option D: Beta distribution

Correct Answer: Exponential distribution  ✔

Option A: Independent

Option B: Predictor

Option C: Controlled

Option D: All of above 

Correct Answer: All of above  ✔

Option A: From larger values of x

Option B: From smallest upto specific value of x

Option C: From zero to specific value of x

Option D: None of these

Correct Answer: From smallest upto specific value of x ✔

Option A: Variable

Option B: Probability distribution 

Option C: Values

Option D: None of these

Correct Answer: Probability distribution  ✔

Option A: 0

Option B: -1

Option C: 1

Option D: Infinity

Correct Answer: 1 ✔

Option A: (C)

Option B: E(x)

Option C: b E(a)

Option D: b

Correct Answer: E(x) ✔

Option A: A

Option B: a E(x)

Option C: x E(a)

Option D: Non of these

Correct Answer: a E(x) ✔

Option A: Continuous data

Option B: Random

Option C: Discrete data

Option D: Non of these

Correct Answer: Continuous data ✔

Option A: (X – A)2

Option B: E(x)

Option C: (x – u)2

Option D: (x – 4)2

Correct Answer: D. (x – 4)2 ✔

Option A: 0 and 1

Option B: 0,1,2,…………9

Option C: 1,2,3….10

Option D: None of these

Correct Answer: B. 0,1,2,…………9 ✔

Option A: E(x + 0)

Option B: E(x + x)

Option C: E(x) + E(y)

Option D: E(y)

Correct Answer: E(x + x) ✔

Option A: Experiment

Option B: Variable

Option C: Random experiment

Option D: Non of these

Correct Answer: Variable ✔

Option A: Random space

Option B: Space

Option C: Random sample

Option D: Non of these

Correct Answer: Random space ✔

Option A: Trial

Option B: event

Option C: Experiment

Option D: Random experiment

Correct Answer: Random experiment ✔

Option A: Random experiment

Option B: random Errors

Option C: Random digits

Option D: None of these

Correct Answer: Random digits ✔

Option A: Interval

Option B: Point

Option C: Time

Option D: Sample space

Correct Answer: Interval ✔

Option A: Discrete variable

Option B: Qualitative variable

Option C: Continuous variable

Option D: None of these

Correct Answer: Continuous variable ✔

Option A: k Var (Y)

Option B: k2 Var(Y)

Option C: Var(Y)

Option D: k2

Correct Answer: k2 Var(Y) ✔

Option A: Var(X) + Var (Y)

Option B: Var(X) – Var (Y)

Option C: Var (X)±

Option D: Zero

Correct Answer: Var(X) + Var (Y) ✔

Option A: Mean/S.D.

Option B: S.D./Mean x 100

Option C: Mean/S.D. x 100

Option D: S.D./Mean

Correct Answer: S.D./Mean x 100 ✔

Option A: Zero

Option B: C

Option C: 1

Option D: 2

Correct Answer: C ✔

Option A: 0.1

Option B: 1

Option C: 0.5

Option D: 0

Correct Answer: Cannot be determined from given information ✔

Option A: 1

Option B: 2

Option C: 0

Option D: Constant

Correct Answer: 0 ✔

Option A: -1 and 0

Option B: 0 and 1

Option C: -1 and 1

Option D: exactly 1

Correct Answer: 0 and 1 ✔

Option A: Harmonic Mean

Option B: Geometric Mean (GM)

Option C: Arithmetic Mean (AM)

Option D: Non

Correct Answer: Geometric Mean (GM) ✔

Option A: 0

Option B: -1

Option C: 1

Option D: Non of These

Correct Answer: Non of These ✔

Option A: P(X=x)

Option B: P(X

Option C: P(X>x)

Option D: P(X≤x)

Correct Answer: P(X ✔

Option A: Probability Function

Option B: Distribution Function

Option C: Probability Distribution

Option D: Probability Density Function

Correct Answer: Distribution Function ✔

Option A: Negative

Option B: Non Negative

Option C: Positive

Option D: None

Correct Answer: Negative ✔

Option A: A Table

Option B: A Graph

Option C: A mathematical Equation

Option D: All of these

Correct Answer: All of these ✔

Option A: ∑P(x)

Option B: ∑x.P(x)

Option C: ∑x2P(x)

Option D: One

Correct Answer: ∑x.P(x) ✔

Option A: Var(bX) + a

Option B: b2 Var(X)

Option C: b Var(x)

Option D: None of these

Correct Answer: b2 Var(X) ✔

Option A: Continuous variable

Option B: Discrete variable

Option C: Function

Option D: None of these

Correct Answer: Discrete variable ✔

Option A: Not a function

Option B: A continuous variable

Option C: A function

Option D: None of these

Correct Answer: A function ✔

Option A: Random function

Option B: Distribution function

Option C: Continuous function

Option D: probability function

Correct Answer: Distribution function ✔

Option A: Two- digit number take

Option B: Random table

Option C: Pack

Option D: Non of these

Correct Answer: Random table ✔

Option A: 2

Option B: 10

Option C: 99

Option D: 100

Correct Answer: 10 ✔

Option A: fixed

Option B: continuous

Option C: discrete

Option D: discrete or continuous

Correct Answer: continuous ✔

Option A: E(x) – E(x)

Option B: E(X) – 0

Option C: 0

Option D: E(x) + E(x)

Correct Answer: 0 ✔

Option A: Discrete

Option B: Variable

Option C: Scale

Option D: Non of these

Correct Answer: Discrete ✔