Answered: Devon designs a computer algorithm that…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Devon designs a computer algorithm that gives users a movie recommendation based on information entered into a viewer profile. Users are asked to rate the recommendation as either "good" or "bad." After testing the algorithm, Devon concludes that the algorithm offers good movie recommendations in 87% of all cases, with a 3% margin of error.

Devon expects the algorithm to offer approximately 5,000 movie recommendations this month, and he wants to calculate the number of recommendations that are expected to be "good."

What would the likely range of "good" recommendations be?

A. 1,400 to 4,550 good recommendations

B. 4,100 to 4,550 good recommendations

C.4,200 to 4,500 good recommendations

D. 4,285 to 4,459 good recommendations

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