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Multiple choice problems based on the probability distribution.

1) The assembly time for a product is uniformly distributed between 6 to 10 minutes.

The standard deviation of assembly time (in minutes) is approximately

a) 1.3333

b) 1.1547

c)  0.1111

d) 0.5773

2) Given that Z is a standard normal random variable, what is the possibility that -2.51 £ Z £ -1.53?

a) 0.4950

b) 0.4370

c)  0.0570

d) 0.9310

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M923217

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