Check our blood pressure: In a recent study, the Centers for Disease Control and prevention reported that diastolic blood pressures of adult women in theUnited States are approximately normally distributed with mean 80.1 mmHg and a standard deviation of 9.5 mmllg. Round the answers to faur decimalplacesPart: 0/4Part 1 of 4(a) What proportion of women have blood pressures lower than 62 mmlig?The proportion of wormen who have blood pressures lower than 62 mmHg is

Let X be the random variable from normal distribution with mean (μ) = 80.1 and standard deviation…

Answered: Check our blood pressure: In a recent…

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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Heights of adult women are normally distributed with a mean of 64 inches with a standard deviation of 2.5 inches. What approximate height is at the 84th percentile? OA. 61.5 inches O B. 66.5 inches O C. 69 inches O D. 64 inches
An insurance company is looking over accident statistics. They want to model the population of all drivers for the population parameter of the standard deviation and variance of the age of the driver involved in an automobile accident. They have a sample of 100 accidents from around the country. The age of the driver in each of these accidents is provided below. Use Excel to calculate the sample standard deviation and the sample variance. Round your answers to one decimal place. Do not round until you've calculated your final answer "Age of people in accident"48643346436728189044472440202747683248472248217347302918487364454920205066654187873417203176493089672222455023481746382942254720463119214227226621236675744621461969202048238851284918204522313823284939 Standard deviation: Variance:
Scores on an exam follow an approximately Normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. What percent of students scored above 80 points?
Moonlight Beauty sells bottles of facial oil that have a mean volume of 30.00 ml and a standard deviation of 0.25 ml. Bottles filled above 30.25 ml and bottles filled below 29.50 ml are considered overfilled and underfilled, respectively. If the oil levels in the bottles are approximately normal, what proportion of the bottles are either underfilled or overfilled? Underfilled: Overfilled: 0 % 0 %
The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 400 hours and a standard deviation of 10 hours. What percentage of the bulbs have lifetimes between 380 hours and 420 hours? 99.7% 95% 68% 84%
The average lifetime of a certain tire is 35,000 miles, and the standard deviation is 3,500 miles. Part 1 of 3 If we assume that the mileages model is a normal distribution, what percentage of all such tires will last between 28,000 and 45,500 miles? Show your work. (Use the Empirical Rule.)
Cardiovascular Disease, Pulmonary Disease The duration of cigarette smoking has been linked to many diseases, including lung cancer and various forms of heart disease. Suppose we know that among men ages 30-34 who have ever smoked, the mean number of years they smoked is 12.7 with a standard deviation of 5.2 years. For women in this age group, the mean number of years they smoked is 9.4 with a standard deviation of 3.1. (Assume that number of years spent smoking can be measured exactly and no continuity correction is necessary. Round your answers to four decimal places.) USE SALT (a) Assuming that the duration of smoking is normally distributed, what proportion of men in this age group have smoked for more than 21 years? (b) Assuming that the duration of smoking is normally distributed, what proportion of women in this age group have smoked for more than 21 years? Need Help? Read It
z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?
A study determined that the average student who graduates takes 58 months to graduate from college with a bachelor's degree and a standard deviation of 10 months. The distribution was approximately normal. What percentage of college graduates will take longer than 4 years (48 months)? 34.1% 34.1% 13.6% 15.6% 83% 23 15.9% 47.7% O84.1% 97.7% 56°F Clou
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