The lives (in hours of continuous use) of 100randomly selected flashlight batteries are:Interval6.95-7.457.45-7.957.95 8.458.45-8.958.95-9.459.45-9.959.95-10.45hrsa. Find the mean of the battery lives.(Type an integer or a decimal. Round to two decimal places.)b. Find the standard deviation of the battery lives. hrs(Type an integer or a decimal. Round to two decimal places.)FrequencyNETHER28213419133

The formula of mid value is, Calculation of mid value:

Answered: The lives (in hours of continuous use)…

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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Find the probability that someone scores between 11 and 16 on the dental anxiety scale. Round to 4 decimal places as needed.
One year consumers spent an average of $22 on a meal at a resturant. Assume that the amount spent on a resturant meal is normally distributed and that the standard deviation is $3. Complete parts (a) through (c) below. Between what two values will the middle 95% of the amounts of cash spent fall?
The average number of miles driven on a full tank of gas in a certain model car before its low-fuel light comes on is 399. Assume this mileage follows the normal distribution with a standard deviation of What is the probability that, before the low-fuel light comes on, the car will travel between 328 and 348 miles on the next tank of gas? 36 miles. Complete parts a through d below. (Round to four decimal places as needed.
pls put fraction and decimal answer
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A normal population has mean u = 50 and standard deviation o = 5. What is the 80th percentile of the population? Use the TI-84 Plus calculator. Round the answer to at least one decimal place.

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