Every week a company randomly selects a number n of its workers for health checks. The proportion of its workers who are over 40 years old is p. Time left 1:27:3 2 Let X represent the number of over-40 workers selected in a particular week so that X ~ Bin(n,p). Suppose Xhas the probability distribution below: x P(X = x) 0 ? 1 0.36015 2 0.30870 3 0.13230 4 0.02835 5 0.00243 a. State the value of n: b. Find the value of p. Give answer to 1 decimal place: The following year, p does not change but the company decides to select 8 workers each week for health checks. c. How many combinations of 5 over-40 workers are possible within the set of 8 workers selected for the health checks?

Every week a company randomly selects a number n of its workers for health checks. The proportion of its workers who are over 40 years old is p. Time left 1:27:3 2 Let X represent the number of over-40 workers selected in a particular week so that X ~ Bin(n,p). Suppose Xhas the probability distribution below: x P(X = x) 0 ? 1 0.36015 2 0.30870 3 0.13230 4 0.02835 5 0.00243 a. State the value of n: b. Find the value of p. Give answer to 1 decimal place: The following year, p does not change but the company decides to select 8 workers each week for health checks. c. How many combinations of 5 over-40 workers are possible within the set of 8 workers selected for the health checks?

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter12: Probability

Section12.4: Discrete Random Variables; Applications To Decision Making

Problem 2E

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