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MCQs

Random Variable And Probability Distributions

Total Questions : 83 | Page 4 of 9 pages
Question 31. If the value of success in binomial probability distribution is 0.40 and failure is 0.60 and the number of values in distribution are 5 then the moment coefficient of skewness is
  1.    0.467
  2.    0.167
  3.    0.267
  4.    0.367
 Discuss Question
Answer: Option B. -> 0.167
Answer: (b).0.167
Question 32. If the value of x for normal distribution is 35, the mean of normal distribution is 65 and the standard deviation is 25 then the standardized random variable is
  1.    −1.5
  2.    −1.2
  3.    −1.7
  4.    −4
 Discuss Question
Answer: Option B. -> −1.2
Answer: (b).−1.2
Question 33. The class of variable which can accept any value within the upper and lower limit is classified as
  1.    posterior random variable
  2.    interior random variable
  3.    discrete random variable
  4.    continuous random variable
 Discuss Question
Answer: Option D. -> continuous random variable
Answer: (d).continuous random variable
Question 34. Consider the probability distribution as standard normal, if the value of μ is 75, the value of x is 120 with the unknown standard deviation of distribution then the value of z-statistic
  1.    will be one
  2.    will be zero
  3.    will be negative
  4.    will be positive
 Discuss Question
Answer: Option D. -> will be positive
Answer: (d).will be positive
Question 35. If the value of p is 0.60 and value of n is 3 whereas the random variable x is equal to 4 then the value of z-score of distribution is
  1.    1.59
  2.    2.59
  3.    2.68
  4.    0.59
 Discuss Question
Answer: Option B. -> 2.59
Answer: (b).2.59
Question 36. For a rectangular or uniform distribution, the value of interval a is 7 and the value of interval b is 8 then the value of mean for the distribution is
  1.    1.33
  2.    3.33
  3.    2.33
  4.    4.33
 Discuss Question
Answer: Option D. -> 4.33
Answer: (d).4.33
Question 37. If the mean of binomial probability distribution is 25 then the mean of Poisson probability distribution is
  1.    70
  2.    50
  3.    25
  4.    50
 Discuss Question
Answer: Option C. -> 25
Answer: (c).25
Question 38. The condition for negative exponential distribution considering mean (μ) is that
  1.    μ must be less than zero
  2.    μ must be greater than one
  3.    μ must be greater than zero
  4.    μ must be smaller than twp
 Discuss Question
Answer: Option C. -> μ must be greater than zero
Answer: (c).μ must be greater than zero
Question 39. The 2600 applications for home mortgage are received by a bank and the probability of approval is 0.78 then the standard deviation of binomial probability distribution is
  1.    2028
  2.    546.16
  3.    446.16
  4.    646.16
 Discuss Question
Answer: Option C. -> 446.16
Answer: (c).446.16
Question 40. If the value of x is less than μ of standard normal probability distribution then the
  1.    z-statistic is negative
  2.    z-statistic is positive
  3.    f(x) will be even number
  4.    f(x) will be prime number
 Discuss Question
Answer: Option A. -> z-statistic is negative
Answer: (a).z-statistic is negative

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