Answered: 14. let X be the number of times a 3…

14. let X be the number of times a 3 appears in 600 throws of a die. (a) Find the pmf. (b) Find E (X). (c) Find V (X). 7

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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Question

Transcribed Image Text:14. let X be the umber of times a 3 appears in 600 throws of a die. (a) Find the pmf. (b) Find E (X). (c) Find V (X). 7 PDF MS-Math-SecE. POF AppealRuling S. 15. A Food Store Chain received many customer complains about the quantity of potato chips in a 16-ounce bags of brand of potato chips. In an effort to assure its customers they were getting their money's worth, they decided to investigate the complains. The Store randomly sampled 50 bags of the potato chips from its shipment and weighed the chips in them. The mean weight of the sample was 7 = 15.7 ounces and the standard deviation was s = .8 ounces. (a) State a mill hypothesis and the alternative hypothesis for this investigation? (b) Use the information presented to perform a hypot hesis test and draw a conclusion for the Food Store Chain on this matter?

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