This set of Probability and Statistics Multiple Choice Questions & Answers (MCQs) focuses on “Gamma Distribution”. 1. The mean and the variance for gamma distribution are __________ a) E(X) = 1/λ, Var(X) = α/λ2 b) E(X) = α/λ, Var(X) = 1/λ2 c) E(X) = α/λ, Var(X) = α/λ2 d) E(X) = αλ, Var(X) = αλ2 … Read more
This set of Probability and Statistics Multiple Choice Questions & Answers (MCQs) focuses on “Exponential Distribution”. 1. The mean of exponential distribution is given as __________ a) 1/λ b) λ c) λ2 d) 1/λ2 2. A mobile conversation follows a exponential distribution f (x) = (1/3)e-x/3. What is the probability that the conversation takes more … Read more
This set of Probability and Statistics Multiple Choice Questions & Answers (MCQs) focuses on “Normal Distribution”. 1. Normal Distribution is applied for ___________ a) Continuous Random Distribution b) Discrete Random Variable c) Irregular Random Variable d) Uncertain Random Variable 2. The shape of the Normal Curve is ___________ a) Bell Shaped b) Flat c) Circular … Read more
This set of Probability and Statistics Multiple Choice Questions & Answers (MCQs) focuses on “Poisson Distribution”. 1. In a Poisson Distribution, if ‘n’ is the number of trials and ‘p’ is the probability of success, then the mean value is given by? a) m = np b) m = (np)2 c) m = np(1-p) d) … Read more
This set of Probability and Statistics Multiple Choice Questions & Answers (MCQs) focuses on “Hypergeometric Distributions”. 1. The mean of hypergeometric distribution is _____________ a) n*k / N-1 b) n*k-1 / N c) n-1*k / N d) n*k / N 2. The probability of success and failures in hypergeometric distribution is not fixed. a) True … Read more
This set of Probability and Statistics Multiple Choice Questions & Answers (MCQs) focuses on “Binomial Distribution”. 1. In a Binomial Distribution, if ‘n’ is the number of trials and ‘p’ is the probability of success, then the mean value is given by ___________ a) np b) n c) p d) np(1-p) 2. In a Binomial … Read more
This set of Probability and Statistics Multiple Choice Questions & Answers (MCQs) focuses on “Mathematical Expectation”. 1. The expectation of a random variable X(continuous or discrete) is given by _________ a) ∑xf(x), ∫xf(x) b) ∑x2 f(x), ∫x2 f(x) c) ∑f(x), ∫f(x) d) ∑xf(x2), ∫xf(x2) 2. Mean of a random variable X is given by _________ … Read more
This set of Probability Multiple Choice Questions & Answers (MCQs) focuses on “Mean and Variance of Distribution – Set 2”. 1. The mean m of the distribution of X is defined by m=E(X)=∑xrfr, when ___________ a) X is discrete b) X is continuous c) X follows Normal distribution d) X follows Poisson distribution 2. For … Read more
This set of Probability and Statistics Multiple Choice Questions & Answers (MCQs) focuses on “Mean and Variance of Distribution”. 1. The expectation of a random variable X (E(X)) can be written as _________ a) b) c) d) 2. If the probability of hitting the target is 0.4, find mean and variance. a) 0.4, 0.24 b) … Read more
This set of Probability Multiple Choice Questions & Answers (MCQs) focuses on “Probability Distributions – Set 3”. 1. For which of the following conditions does the Geometric Random Variable P[X=n] = (1-p)n-1p, hold? a) Independent trials and n=0, 1, 2, 3, … b) Independent trials and n=1, 2, 3, … c) Dependent trials and n=0, … Read more
