Author Question: The probability that a call received by a certain switchboard will be a wrong number is 0.02. Use ... (Read 122 times)

laurencescou · **on:** Jul 25, 2018

The probability that a call received by a certain switchboard will be a wrong number is 0.02. Use
the Poisson distribution to approximate the probability that among 150 calls received by the
switchboard, there are at least two wrong numbers.

A) 0.8009 B) 0.7760 C) 0.2240 D) 0.1991 E) 0.5768

Question 2

A meteorologist constructs a graph showing the total precipitation in Phoenix, Arizona in each of the months of 1998. Does this involve descriptive statistics or inferential statistics?

A) Descriptive B) Inferential