Multiple choice question based on probability distribution

Assignment Help Basic Statistics

Reference no: EM1322787

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 probability that -2.51 £ Z £ -1.53?

a) 0.4950

b) 0.4370

c) 0.0570

d) 0.9310

Reference no: EM1322787

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