Given a normal probability distribution with a mean of 9% and a standard deviation of 4%, what isthe probability of observing a value between 2% and 14%?Use the following Z-score data is from the HP calculator:Z-Score-2.00-1.75-1.50-1.25-1.000.001.001.251.501.752.00Probability0.02280.04010.06680.10560.15870.50000.84130.89440.93320.95990.9772Answer in decimal format, to 3 decimal places, truncated. For example, if your answer is 33.46%,enter 0.334.

GivenMean(μ)=9 %standard deviation(σ)= 4 %

Answered: Given a normal probability distribution…

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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The average grade for an exam is 74, the standard deviation is 7 and the grades are curved to follow a normal distribution. Find the probability that a student will get a grade from 81 to 88 Select one: O a. 0.451 b. 0.612 O c. 0.1359 O d. 0.561
Assume that the time it takes the housekeeping crew of a local hotel to clean a room varies uniformly between 25 and 50 minutes. Calculate the mean and variance for the distribution. Select one: O a. 37.5 and 50.08 O b. 15.5 and 50.08 O c. 51.2 and 36.6 O d. 37.5 and 78.5
The diameter of an electric cable is normally distributed, with a mean of 0.9 inch and a standard deviation of 0.02 inch. What is the probability that the diameter will exceed 0.91 inch? a. 0.1915 b. 0.2785 c. 0.6170 d. 0.3185 e. 0.3085
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?
A surgery has a success rate of 90%. Suppose that the surgery is performed on threepatients Graph the probability distribution for X using a histogram.Find the mean of X.Find the variance and standard deviation of X.
Read the z statistic from the normal distribution table. For a one-tailed test (lower tail) using a = 0.0618, z = -0.78 O-1.54. 0.48 -1.645.
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
Read the z statistic from the normal distribution table. For a one-tailed test (lower tail) using a = 0.1685, z = -0.96 -1.54. 0.9554 -1.645.
Help me solve for r
The heights of 100 students are normally distributed with a mean of 172 cm. What is the standard deviation of the heights given that the probability of a height above 180 cm is 0.25? Select one: a. 7.9 cm b. 9.9 cm c. 10.5 cm d. 8.7 cm e. 11.9 cm
A flooring company sells carpet by the metre off of a standard sized roll. The mean amount of carpet sold per month is known to have a normal distribution. If the probability of selling more than 1,000 metres per month is 0.0668 and the standard deviation is 100 metres, what is the mean amount of carpet sold? 900 1100 1150 850 The amount of coffee poured into a large coffee cup at the campus Tim Horton's has a distribution that is skewed to the right with a mean of 600 ml and a standard deviation of 50 ml. For a random sample of 100 large cups poured, what is the mean of the sampling distribution? 50 600 100 50 √100

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