For questions 1 and 2, sketch an appropriate graph as part of your solution.A college entrance exam has a mean score of 150 with a standard deviation of 23. If theshape of the distribution of these exam scores is skewed to the right, what can be saidabout the proportion of students taking this exam obtain a score between 104 and 196?1.A college entrance exam has a mean score of 150 with a standard deviation of 23. If theshape of the distribution of these exam scores is mound shaped and symmetrical,approximately what proportion of students taking this exam obtain a score:a) below 81?b) between 104 and 150?c) above 173?2.

Answered: Image /qna-images/answer/ebe0d233-b1ae-474d-a648-464b337106df.jpg

Answered: For questions 1 and 2, sketch an…

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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Suppose the mean of X is 6. What is the mean of Y if a = 0.66 and Y=aX?
Round each z-score to the nearest hundredth. A data set has a mean of x = 213 and a standard deviation of 48. Find the z-score for each of the following. (a) x = 200 (b) x = 224 (c) x = 300 (d) x = 100
The mean grade of in the final examination in the mathematics was 85 and tje standard deviation was 7.in science , his mean grade was 89 and the standard deviation was 13.
Stanford-binet IQ test scores are normally distributed with a mean score of 100 and a standard deviation of 16. Write the equation that gives the z score corresponding to a stanford-binet IQ test scores. Sketch the distribution of z scores.
For item 4 to 6. Table 3.8 shows the heights of a sample of 12 fathers and their oldest adult sons. Find the coefficient of rank correlation in two decimal places. Height of father(inches) 65 63 67 64 68 62 70 66 68 67 69 71 X Height of 68 66 68 65 69 66 68 65 71 67 68 70 son(inches) Y sample answer. 0.15 -0.65
I just need help solving this.
One of the z-score formulas will help on this question. Scores on the SAT test are normally distributed with a mean of 500 and standard deviation of 100 points. Pretend someone scored 400 on the math portion of the SAT test. What would be the z-score cut off for this score? A. 1.0 B. -1.0 C. 0 D. 2.0
For some data, we know the range R of the data is 12 and its median is 6. Find Estimated Lowest Number, and Estimated Highest Number for this data. Give you answers in the same order asked.
If the mean of the data is 130 with a standard deviation of 10, what percent of the data falls between the values of 100 and 160?
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. Click to view page 1 of the table. Click to view page 2 of the table. The indicated IQ score, x, is (Round to one decimal place as needed.) A 0.55 X Q
Suppose the correlation between height and weight for adults is +0.40.What proportion (or percent) of the variability in weight can be explained by the relationship with height?
There are two national college-entrance examinations, the scholastic aptitude test (SAT) and the American College Testing program (ACT). Scores on the SATs are approximately normal with mean 500 and standard deviation 100. Scores on the ACTs are approximately normal with mean 18 and standard deviation 6. Use the links provided for the Normal (Links to an external site.)calculator and the Inverse Normal (Links to an external site.) calculator to help complete the problems, you do not need to do any work out by hand. (instructions on how to use these calculators can be found in the week 5 star on the home page) a) What percent of all SAT scores are above 600? b) Which is the greater accomplishment, scoring 630 on the SAT or 22 on the ACT ? Explain your reasoning for your choice. c) How high a score in the SAT is needed to place in the top 2.5%.

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