A manufacturing machine has a 70% defect rate. If 119 items are chosen at random, answer the following. a) Which is the correct wording for the random variable? rv X = the number of 119 randomly selected items that are defective b) Pick the correct symbol: n = 119 c) Pick the correct symbol: p: V = 0.7 d) What is the probability that exactly 81 of them are defective? Round final answer to 4 decimal places. e) What is the probability that less than 81 of them are defective? Round final answer to 4 decimal places. f) What is the probability that more than 81 of them are defective? Round final answer to 4 decimal places. g) What is the probability that exactly 86 of them are defective? Round final answer to 4 decimal places.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter0: Preparing For Algebra
Section: Chapter Questions
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Just answer part d,e,f,

A manufacturing machine has a 70% defect rate. If 119 items are chosen at random, answer the following.
a) Which is the correct wording for the random variable?
rv X = the number of 119 randomly selected items that are defective
b) Pick the correct symbol: n
119
%3D
c) Pick the correct symbol: P :
= 0.7
d) What is the probability that exactly 81 of them are defective?
Round final answer to 4 decimal places.
e) What is the probability that less than 81 of them are defective?
Round final answer to 4 decimal places.
f) What is the probability that more than 81 of them are defective?
Round final answer to 4 decimal places.
g) What is the probability that exactly 86 of them are defective?
Round final answer to 4 decimal places.
Transcribed Image Text:A manufacturing machine has a 70% defect rate. If 119 items are chosen at random, answer the following. a) Which is the correct wording for the random variable? rv X = the number of 119 randomly selected items that are defective b) Pick the correct symbol: n 119 %3D c) Pick the correct symbol: P : = 0.7 d) What is the probability that exactly 81 of them are defective? Round final answer to 4 decimal places. e) What is the probability that less than 81 of them are defective? Round final answer to 4 decimal places. f) What is the probability that more than 81 of them are defective? Round final answer to 4 decimal places. g) What is the probability that exactly 86 of them are defective? Round final answer to 4 decimal places.
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