MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question
A vertical line is drawn through a normal distribution at z = -1.20. Which proportion of the distribution is on the right-hand side of the line?
a. |
0.7698
|
|
b. |
0.8849
|
|
c. |
0.3849
|
|
d. |
0.1151
|
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- A vertical line is drawn through a normal distribution at z = 1.20. What proportion of the distribution is on the left-hand side of the line? Question 6 options: 0-8849 0-1151 0.3849 0.7698arrow_forwardWhat is the proportion that lies between the z scores under the normal curve? A. 1.00 and -1.00 B. 1.96 and -1.96 C. 2.58 and -2.58 D. 0.00 and 1.00 E. 1.50 and 0.10 F. 2.00 and 0.80arrow_forwardWhat is the probability that a data value in a normal distribution is between a z-score of -1.13 and a z-score of -0.19? Round your answer to the nearest tenth of a percent. A. 26.5% O B. 28.5% OC. 27.5% OD. 29.5%arrow_forward
- Please see picturearrow_forwardA subway train arrives every eight minutes during rush hour. We are interested in the length of time a commuter must wait for a train to arrive. The time follows a uniform distribution. a. Find the mean, μ = b. Find the standard deviation, σ = Round to the nearest tenth.arrow_forwardA normal distribution has a mean of µ = 50 with σ = 30. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 50 and X = 80? Select one: a. 0.6826 b. 0.3413 c. 0.8413 d. 0.1587arrow_forward
- A normal distribution has a mean of u = 40 with a = 10. If a vertical line is drawn through the distribution at X = 35, what proportion of the scores are on the left side of the line? Question 21 options: 0.3085 0.6915 0.0668 0.9332arrow_forwardThe per capita energy consumption level (in kilowatt-hours) in a certain country for a recent year can be approximated by a normal distribution, as shown in the figure. H=2267 kWh VE o=574.7 kWh 2267 Kilowatt-hours 267 X 4267 (a) What consumption level represents the 6th percentile? (b) What consumption level represents the 17th percentile? (c) What consumption level represents the third quartile?arrow_forwardIn the normal distribution (the area under the normal curve): The area (at and) below the mean (z = 0.00) is % ___. of the area. The area between z = -1.00 and z = +1.00 is approximately ____. % of the area. The area between z = +1.00 and z = +2.00 is approximately _____. % of the area. The area between z = -2.00 and z = +2.00 is approximately ____ % of the area.arrow_forward
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