Question

In: Statistics and Probability

The weights of the native North American Blue Jay have a mean of 18.4 ounces with...

  • The weights of the native North American Blue Jay have a mean of 18.4 ounces with a standard deviation of 3.6 ounces. The distribution can be considered normal. What is the 2.5th percentile of all weights?

A. 11.344

B. 14.800

C. 13.792

D. 12.478


  • For the data in problem 7, what is the 97.5th percentile of all weights? A. 25.456

B. 27.688

C. 24.322

D. Can’t tell from the given data


  • A population of fruit flies has 30% black and 70% gray flies. If 10 flies are selected from this population, what is the probability that exactly four are black?

A. 0.2

B. 0.3

C. 0.4

D. 0.5

Solutions

Expert Solution

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