36.  If the value of x is less than μ of standard normal probability distribution then the 
a.  zstatistic is negative 
b.  zstatistic is positive 
c.  f(x) will be even number 
d.  f(x) will be prime number 
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Answer: (a).zstatistic is negative

37.  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 
a.  2028 
b.  546.16 
c.  446.16 
d.  646.16 
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Answer: (c).446.16

38.  The type of continuous distribution in which the probability is constant is classified as 
a.  rectangular distribution 
b.  square distribution 
c.  open frequency distribution 
d.  class frequency distribution 
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Answer: (a).rectangular distribution

39.  If the value of interval a is 4 and the value of interval b is 5 then the variance of uniform distribution is 
a.  6.75 
b.  4.75 
c.  5.75 
d.  0.75 
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Answer: (a).6.75

40.  The formula such as mn ⁄ (m + n)² (m + n + 1) is used to calculate 
a.  variance in exponential distribution 
b.  variance in alpha distribution 
c.  variance in gamma distribution 
d.  variance in beta distribution 
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Answer: (d).variance in beta distribution
