Sectlon Exerclse 7-10 (Algo)Jill's resting heart rate (bpm) is a uniformly distributed random variable ranging between 73 and 76 bpm.(0) What is her average resting heart rate? (Round your answer to 1 declmal place.)bpmAverage resting heart rateces(b) What is her standard deviation? (Round your answer to 3 declmal places.)Standard deviation(c) What is the probability that her bpm on a randomly chosen morning is below 73.1? (Round your answer to 4 decimal places.)Probability(d) What is the probability that her bpm on a randomly chosen morning is greater than 75.3? (Round your answer to 4 decimalplaces.)Probability< Prev

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Answered: Jill's resting heart rate (bpm) is a…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed with a mean of 240 feet and a standard deviation of 48 feet. Let X = distance in feet for a fly ball. If one fly ball is randomly chosen from this distribution, what is the probability that this ball traveled fewer than 186 feet? (Round your answer to four decimal places.) ch6#4
Joey and Dee Dee bowled five games at the Rock 'n' Bowl Lanes. Their scores are given in the following table. Joey 143 170 219 157 146 Dee Dee 183 166 188 143 160 (a) Find the mean score of each bowler. (Round the answer to one decimal place.) Joey X = Dee Dee x = (b) Find the standard deviation of each bowler's scores. (Round the answer to one decimal place.) Joey S = Dee Dee s =
Scores from the midterm statistics exam followed a normal distribution with a mean of 69 and a standard deviation of 10. If a student had to score at least an 93 to earn an A, what is the probability that a student earned an A? (Use a table or technology. Round your answer to four decimal places.)
Current Attempt in Progress Johnson Electronics Corporation makes electric tubes. It is known that the standard deviation of the lives of these tubes is 155 hours. The company's research department takes a sample of 90 such tubes and finds that the mean life of these tubes is 2150 hours. What is the probability that this sample mean is within 20 hours of the mean life of all tubes produced by this company? Round your answer to four decimal places. P = i
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?
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Find the probability that this person has an IQ greater than 138. Round your answer to 4 decimals. P(IQ greater than 138) =
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Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $136,000. Assume the standard deviation is $39,000. Suppose you take a simple random sample of 9 graduates. Round all answers to four decimal places if necessary.
Using the data and your graphing calculator answer the questions that follow. This table represents the number of hours spent studying for a test and the scores earned. Test Score (%) Hours Studying 100 90 80 70 60 A) Which of these statements makes more sense? O The dependent variable is Hours Studying and the Independent variable is Test Score O The dependent variable is Test Score and the Independent variable is Hours Studying 50 1 3.5 B) Make a scatterplot of the data. 40 30 20 4 4.5 5.5 6 7 7.5 10 1 2 67 78 82 85 87 85 89 97 3 4 A 5 6 7 8 9
Tire pressure monitoring systems (TPMS) warn the driver when the tire pressure of the vehicle is 26% below the target pressure. Suppose the target tire pressure of a certain car is 28 psi (pounds per square inch.) (a) At what psi will the TPMS trigger a warning for this car? (Round your answer to 2 decimal place.) When the tire pressure is (Click to select): psi. (b) Suppose tire pressure is a normally distributed random variable with a standard deviation equal to 3 psi. If the car's average tire pressure is on target, what is the probability that the TPMS will trigger a warning? (Round your answer to 4 decimal places.) Probability (c) The manufacturer's recommended caorrect inflation range is 26 psi to 30 psi. Assume the tires' average psi is on target. If a tire on the car is inspected at random, what is the probability that the tire's inflation is within the recommended range? (Round your intermediate calculations and final answer to 4 decimal places.) Probability
Round z-score to the nearest hundredth and then find the required A values using the table. The amount of time customers spend waiting in line at a bank normally distributed, with a mean of 3.0 minutes and a standard deviation of 7.5 minute. Find the probability that the time a customer spends waiting is as follows. (A) Less than 3.5 minutes and (B) less than 1.5 minutes.
Find the probability that a normal variable takes on values more than standard deviations away from its mean. (Round your answer to four decimal places.)

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