b. An advertising campaign for a new product is targeted to make 20% of the adult population in a metropolitan area aware of the product. After the campaign, a random sample of 400 adults in the metropolitan area is obtained. i. Find the approximate probability that 57 or fewer adults in the sample are aware of the product ii. Should the approximation in part i. be accurate?

b. An advertising campaign for a new product is targeted to make 20% of the adult population in a metropolitan area aware of the product. After the campaign, a random sample of 400 adults in the metropolitan area is obtained. i. Find the approximate probability that 57 or fewer adults in the sample are aware of the product ii. Should the approximation in part i. be accurate?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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