Lisa has collected data to find that the number of pages per book on a book shelf has a normal distribution. What is theprobability that a randomly selected book has fewer than 173 pages if the mean (4) is 194 pages and the standarddeviation (a) is 21 pages? Use the empirical rule.Enter your answer as a percent rounded to two decimal places if necessary.Provide your answer below:FEEDBACK

The empirical rule, also known as the 68-95-99.7 rule, states that for a normal…

Answered: Lisa has collected data to find that…

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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Identify the data value corresponding to the indicated percentile. The amount of sleep an adult gets per day is normally distributed with a mean of 7 hours and a standard deviation of 1.5 hours. Five percent of adults sleep more than how many hours per day?
Please answer within 30min thanks.
Leave all probabilities as percentages. Define x on all problems with data. The number of patients coming into a dental clinic each day were 74, 52, and 83. a. Find the sample mean. b. Find the sample standard deviation. c. Find the population variance.
Students in the psychology department at General State University consumes an average of 7 sodas per day with a standard deviation of 2.5. the distribution is normal. Explain how you would go about answering the following questions (include your answer to the question in your response): How many sodas would an individual at the 75thpercentile drink per day?
Many college admissions want to know your class percentage in addition to your grades. The grades are normally distributed. A certain university insists that a student place in at the 90th percentile. if the mean is 79.45 and the standard deviation is 5.37, what is the 90th percentile? a.88.07 b.85.01 c.86.33 d.90
The average driver spends $54 at the gas station each week with a standard deviation of $8. Assuming that the amount a driver spends on gas follows a normal distribution, solve for the percentage of drivers who spend: 1. More than $40? 2. Less than $30? 3. Between $30 and $40
The heights of women follow a normal distribution with a mean height of 63.7, and a standard deviation in height of 2.9 in. What height separates the tallest 10% of women from the rest. Round your result to 1 decimal place.
Type in your answer below: As in the previous question, female's pulse rates are normally distributed with a mean 74 beats per minute and a standard deviation 12.5 beats per minute. Find the probability that a female has a pulse rate between 60 beats per minute and 70 beats per minute. You can use a calculator or table A-2 in your textbook. Round your answer to three decimal places.
Select the letter of the correct answer: A random variable X has a mean of 45 and a standard deviation of 11. Find the corresponding z-score for x=22. Choices: A. -2.09 B. 1.54 C. 0.24 D. -1.54
Use the magnitudes (Richter scale) of the 120 earthquakes listed in the accompanying data table. Use technology to find the range, variance, and standard deviation. If another value, 8.00, is added to those listed in the data set, do the measures of variation change much? Click the icon to view the table of magnitudes. Magnitudes Without the extra data value, the range is (Type an integer or decimal rounded to three decimal places as needed.) 3.28 2.82 2.83 1.96 1.70 2.55 O 2.45 3.40 3.95 1.59 2.91 1.63 2.53 2.42 2.97 2.93 3.99 2.54 2.43 1.83 2.17 2.35 2.00 3.01 2.80 3.86 2.93 2.08 1.86 2.35 2.38 3.45 3.43 1.55 2.54 1.49 2.19 3.09 2.28 3.25 1.98 1.91 2.42 2.95 2.14 2.33 2.56 2.89 1.48 1.91 2.68 1.81 3.65 2.70 1.45 3.61 3.14 2.57 1.51 1.41 2.83 2.87 2.18 1.67 3.21 1.39 1.75 2.35 1.14 2.36 2.48 1.79 2.00 3.03 1.94 2.42 1.86 2.25 2.33 3.17 4.01 2.08 1.49 2.31 2.33 2.56 2.59 2.21 2.75 2.45 2.73 3.58 2.81 2.80 3.25 1.76 4.68 3.23 2.38 2.00 3.83 2.39 2.85 3.38 2.69 2.31 2.83 2.78 2.43 2.34…
Lisa has collected data to find that the number of pages per book on a book shelf has a normal distribution. What is the probability that a randomly selected book has fewer than 140 pages if the mean is 194 pages and the standard deviation is 27 pages? Use the empirical rule.Enter your answer as a percent rounded to two decimal places if necessary. Provide your answer below: %
Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score Frequency 90 1 80 4 70 7 60 6 50 3

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