-DO1. Adult females have a pulse rate that is normallydistributed with a mean of 74.0 beats per minute and astandard deviation of 12.5 beats per minute.a) If one adult female is selected at random, find theprobability that her pulse rate is less than 80 beats perminute.Type your answer...b) If 16 adult females are randomly selected, find theprobability that they have pulse rates with a mean lessthan 80 beats per minuteType your answer...c) If 4 adult females are randomly selected, find theprobability that they have pulse rates with a meanbetween 78 beats per minute and 90 beats perminute.Type your answer...

Given , Mean , 74.0Standard deviation , 12.5

Answered: -DO 1. Adult females have a pulse rate…

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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Evpte. If the probability of a defective bolt is 0.1, find Ta) the mean (b) the standard deviation for the distribution of defective bolts in a total of 400.
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
Suppose Michigan is favored by 17.5 points over Indiana. If you bet a “unit” on Indiana and Indiana loses by 17 or less, you win $10. If Indiana loses by 18 or more points, you lose $11. Note: Both Michigan and Indiana are NCAA Basketball teams. 1)Find the mean and standard deviation of your winnings on a single bet. Assume that there is a 0.5 probability that you will win your bet and a 0.5 probability that you will lose your bet.
The average time it takes college freshmen to complete the Mason Basic Reasoning Test is 38.3 minutes. The standard deviation is 3.2 minutes. Assume the variable is normally distributed. Find the probability that it will take a student between 30 and 45 minutes to complete the test.
Write down the formulas for the standard deviation of p.
A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1471 and the standard deviation was 317. The test scores of four students selected at random are 1900,1200,2200,and 1370. Find the z-scores that correspond to each value and determine whether any of the values are unusual.
Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a standard deviation a = 15. Find the probability that a randomly selected adult has an IQ between 91 and 119. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 91 and 119 is. (Type an integer or decimal rounded to four decimal places as needed.) Enter your answer in the answer box. MacBook Air esc 888 %23 & 2 3 4 5 6 7 8 Q E R T Y tab P A D G H caps lock K V в N M > ? control option command command option
If the grades of 100 students have mean 18 and standard deviation 4. If we subtract 3 from each student, then we divide by -2. The new standard deviation is Select one: O a. 2 O b. 4 O c. -2 O d. -4
The weights of rabbits on an island, measured in pounds, are normally distributed with mean 4.5 and standard deviation 3.1. In each case, identify the calculator command that would answer the given question. The chances that a randomly selected rabbit weighs at least 6 pounds. The chances that 15 randomly selected rabbits have an average weight of at least 6 pounds. The chances that 15 randomly selected rabbits have a total weight less than 50 pounds.
The probability that a person catches a cold during the cold and flu season Is 0.4. Assume that 10 people are chosen at random. What is the standard deviation for the number of people catching a cold?

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