II. Solving, Show your solution.9-10. IQ scores are normally distributed with a mean of 135 and a standard deviation of 15 wZ-score corresponds to an IQ score of 100?For numbers 11-14. Find the area of the following under the normal curve then graph.11-12. To the right of z = -0.5213-14. Betweenz = 0.41 and z = 1.25ERA

Given,mean(μ)=135standard deviation(σ)=15

Answered: II. Solving. Show your solution. 9-10.…

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 Z-score tells you the number of standard deviations away from the mean (and X-μ can be used to find the in what direction) a data value is. The formula: Z Z-score for a single member of the population. Notice X - μ tells you the signed distance the data value (X) is from the mean. When you divide that by the size of each chunk (the standard deviation) you are measuring the distance in units of the size of the standard deviations (how many standard deviations fit in the distance between the data value and the mean) - which gives you the Z-score. σ The formula X = μ+Z. can be used to find the value in the population when given the Z-score (signed number of standard deviations). Notice that Z. tells you how far from the mean the data value is (since Z is the number of standard deviations and is the size of each standard deviation the product tells the total distance). So adding the distance from the mean to the mean gives the location along the number line for the data value. A…
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standarthed deviation of 15 0.6 the indicated IQ score, x is ________. Round to one decimal place as needed.
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Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the probability of a bone density test score greater than negative 1.91−1.91. Question content area bottom Part 1 Sketch the region. Choose the correct graph below. A. -1.91 A symmetric bell-shaped curve is plotted over a horizontal axis. A vertical line segment runs from the horizontal axis to the curve at labeled coordinate negative 1.91, which is to the left of the curve’s center and peak. The area under the curve to the right of negative 1.91 is shaded. B. -1.91 A symmetric bell-shaped curve is plotted over a horizontal axis. A vertical line segment runs from the horizontal axis to the curve at labeled coordinate negative 1.91, which is to the left of the curve’s center and peak. The area under the curve to the left…
The discharge of suspended solids from a phosphate mine is normally distributed, with a mean daily discharge of 27 milligrams per liter (mg/l) and a standard deviation of 14 mg/l. On what proportion of days will the daily discharge exceed 60 mg/l? (Round your answer to four decimal places.) X USE SALT
Q.4 F
Round answers to 4 decimal places. Draw graphs and include functions 2. The scores on a standardized exam are normally distributed with a mean of 74 and standard deviation of 7.32. Let X = one exam score. a. Write the distribution of X b. Find the probability a randomly selected exam has a score higher than 80. c. Find P97
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 3/2 Click to view page 1 of the table, Click to view page 2 of the table. pr 0.55 =/2 pr /2 or The indicated IQ score, x, is (Round to one decimal place as needed.) /2 /2 or 2 or on 2 on ? Enter your answer in the answer box.
Which of the following are true about the Z-score? Two answers correct. All or nothing credit. 1. It provides a sense of how far an observation is from the mean in relative to the standard deviation. 2. An observation is generally considered an outlier if its Z-score is more than 3 or less than -3. 3. The Z-score measures where the observations in a data set are scattered around. 4. A Z-score of -1 tells us that the average value of the data set is one standard deviations below the mean.
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. ... The indicated IQ score is. (Round to the nearest whole number as needed.) X 5 0.3204
Round answers to 4 decimal places. Draw graphs and include functions where appropriate.2. The scores on a standardized exam are normally distributed with a mean of 74 and standard deviation of 7.32. Let X = one exam score.a. Write the distribution of Xb. Find the probability a randomly selected exam has a score higher than 80.c. Find P97

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