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Recently, it was found that the length of months that cell phones last is 24.42 months, with a standard deviation of 2.73 months. It is known that the distribution of lengths of cell phones is normally shaped. State the random variable. Oz = the average length of months cell phones last OE = the average length of months cell phones last %3D Oz = the length of months a cell phone lasts OT = the length of months a cell phone lasts Find the probability that the length of months that cell phones last is from 24 to 30 months. Round to three decimal places. Which is the notation for this probability? O P(24 < T < 30) O P(24 < r < 30) Find the probability that the average length of months cell phones last is from 24 to 30 months for a sample of size 32. Round to three decimal places. Which is the notation for this probability? O P(24 < < 30) O P(24 < x < 30)

Recently, it was found that the length of months that cell phones last is 24.42 months, with a standard deviation of 2.73 months. It is known that the distribution of lengths of cell phones is normally shaped. State the random variable. Oz = the average length of months cell phones last OE = the average length of months cell phones last %3D Oz = the length of months a cell phone lasts OT = the length of months a cell phone lasts Find the probability that the length of months that cell phones last is from 24 to 30 months. Round to three decimal places. Which is the notation for this probability? O P(24 < T < 30) O P(24 < r < 30) Find the probability that the average length of months cell phones last is from 24 to 30 months for a sample of size 32. Round to three decimal places. Which is the notation for this probability? O P(24 < < 30) O P(24 < x < 30)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Recently, it was found that the length of months that cell phones last is 24.42 months, with a standard deviation of 2.73 months. It is known that the distribution of lengths of cell phones is normally shaped. State the random variable. O1 = the average length of months cell phones last OI = the average length of months cell phones last Or = the length of months a cell phone lasts O= the length of months a cell phone lasts Find the probability that the length of months that cell phones last is from 24 to 30 months. Round to three decimal places. Which is the notation for this probability? O P(24 < < 30) O P(24 < I < 30) Find the probability that the average length of months cell phones last is from 24 to 30 months for a sample of size 32. Round to three decimal places. Which is the notation for this probability? OP(24 < 30) OP(24 < 30)
Transcribed Image Text:Recently, it was found that the length of months that cell phones last is 24.42 months, with a standard deviation of 2.73 months. It is known that the distribution of lengths of cell phones is normally shaped. State the random variable. O1 = the average length of months cell phones last OI = the average length of months cell phones last Or = the length of months a cell phone lasts O= the length of months a cell phone lasts Find the probability that the length of months that cell phones last is from 24 to 30 months. Round to three decimal places. Which is the notation for this probability? O P(24 < < 30) O P(24 < I < 30) Find the probability that the average length of months cell phones last is from 24 to 30 months for a sample of size 32. Round to three decimal places. Which is the notation for this probability? OP(24 < 30) OP(24 < 30)
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