# Question

A classic study by F. Thorndike on the number of calls to a wrong number appeared in the paper “Applications of Poisson’s Probability Summation” (Bell Systems Technical Journal, Vol. 5, pp. 604–624). The study examined the number of calls to a wrong number from coin-box telephones in a large transportation terminal. Based on the results of that paper, we obtained the following percent distribution for the number of wrong numbers during a 1-minute period.

a. Construct a relative-frequency histogram of these wrong number data.

b. Based on your histogram, do you think that the number of wrong numbers from these coin-box telephones is approximately normally distributed? Explain your answer.

a. Construct a relative-frequency histogram of these wrong number data.

b. Based on your histogram, do you think that the number of wrong numbers from these coin-box telephones is approximately normally distributed? Explain your answer.

## Answer to relevant Questions

Each year, thousands of high school students bound for college take the Scholastic Assessment Test (SAT). This test measures the verbal and mathematical abilities of prospective college students. Student scores are reported ...Explain why being able to obtain areas under the standard normal curve is important. Determine the area under the standard normal curve that lies to the left of a. −0.87 b. 3.56 c. 5.12 Use Table II to obtain each shaded area under the standard normal curve. Obtain the z-score that has an area of 0.95 to its right.Post your question

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