46.  If the zscore of normal distribution is 2.5, the mean of the distribution is 45 and the standard deviation of normal distribution is 3 then the value of x for a normal distribution is 
a.  97.5 
b.  47.5 
c.  37.5 
d.  67.5 
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Answer: (c).37.5

47.  If the μ is equal to 25 then the value of mean for exponential probability distribution is 
a.  0.4 
b.  0.08 
c.  0.07 
d.  0.04 
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Answer: (d).0.04

48.  The discrete probability distribution in which the outcome is very small with a very small period of time is classified as 
a.  posterior distribution 
b.  cumulative distribution 
c.  normal distribution 
d.  Poisson distribution 
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Answer: (d).Poisson distribution

49.  Considering the normal distribution, the spread is increased and the height of the curve is decreased for the 
a.  smaller value of variance 
b.  larger value of variance 
c.  larger value of standard deviation 
d.  smaller value of standard deviation 
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Answer: (c).larger value of standard deviation

50.  If the number of trials are 8 and the probability of success are 0.65 then the mean of negative probability distribution is 
a.  8.65 
b.  12.31 
c.  5.2 
d.  7.35 
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Answer: (b).12.31
