Sale amounts during lunch hour at a local subway are normally ditributed, with a mean $ 6.28, and astandard deviation of $ 1.23.[Round your answers to two decimal places.]a. Find the probability that a randomly selected sale was at least $ 10.21?b. A particular sale was $ 8.86. What is the percentile rank for this sale amount?c. Give the sale amount that is the cutoff for the highest 23 %?d.What is the probability that a randomly selected sale is between $4.00 and $7.00?e. What sale amount represents the cutoff for the middle 95 percent of sales?The smaller number here)(Biggernumber here)&大4788 5%24%23

Answered: Image /qna-images/answer/2dae92a2-3f22-455c-a830-7c3b39b5d9e7.jpg

Answered: Sale amounts during lunch hour at a…

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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During an experiment, the following times (in seconds) were recorded. Find the mean. 6.3, 5.4, 6, 3.2, 5.4, 5.5 ... The mean is (Round to one decimal place as needed.) ...
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The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates. Use the frequency distribution to approximate the population mean and population standard deviation. Compare these results to the actual mean u = $1.506 and standard deviation o = $1.004. Click the icon to view the frequency distribution for the tax rates. Frequency distribution of cigarette tax rates Tax Rate Frequency 0.00–0.49 7 0.50-0.99 14 1.00–1.49 7 1.50–1.99 2.00–2.49 5 2.50–2.99 5 3.00–3.49 3.50–3.99 1 4.00-4.49 1
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