A number of people were asked how many days they would wait to seek medical trea

Question

A number of people were asked how many days they would wait to seek medical treatment if they were suffering pain that interfered with their ability to work. The results are presented in the following table. Number of DaysFrequency 27 414 239 101 19 10 Consider this collection of people to be a population. Let X be the number of days for a person sampled at random from this population. Find the probability that a person would wait more than 2 days. write only a number as your answer. Round to four decimal places (for example: 0.5319). Do not write as a percentage Your Answer: Answer

Explanation / Answer

P(X>2)

= P(X=3) + P(X=4) + P(X=5)

= 101/N + 19/N + 10/N

where N = total number of persons in the population.

Therefore, N = 27 + 414 + 239 + 101 + 19 + 10 = 810

So, P(X>2) = (101+19+10)/N = 130/810 = 0.1605 (correct upto four decimal places).

Answer: 0.1605

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