A humanities professor assigns letter grades on a test according to the following scheme.A: Top 8 % of scoresB: Scores below the top 8 % and above the bottom 62 %C: Scores below the top 38 % and above the bottom 18 %D: Scores below the top 82 % and above the bottom 9 %F: Bottom 9 % of scoresScores on the test are normally distributed with a mean of 67 and a standard deviation of 7.3. Find the numerical limits for a C grade. Round youranswers to the nearest whole number, if necessary.

The mean is 67 and standard deviation is 7.3. The limit for score above the bottom 18% is,…

Answered: Scores on the test are normally…

Scores on the test are normally distributed with a mean of 67 and a standard deviation of 7.3. Find the numerical limits for a C grade. Round your answers to the nearest whole number, if necessary.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Click the icon to view the histogram. Complete the table. Round values to the nearest tenth as needed. Graph/chart f Midpoint x xf 70.5 Ay 30- 92.5 26 25- 114.5 136.5 20- 158.5 15- 12 Ef = Exf = 10- Find the mean of the data set. 5- X = (Round to the nearest tenth as needed.) 48.5 70.5 92.5 114.5 136.5 158.5 Complete the table. Round values to the nearest tenth as needed. Midpoint x (x-x)? (x-x)?f X-X 70.5 Print Done 92.5 114.5 136.5 158.5 (x-x)?r= ] of
A distribution of values is normal with a mean of 190 and a standard deviation of 4.Find the interval containing the middle-most 30% of scores: Enter your answer using interval notation. Example: (2.1,5.6)
instructor gives a 100-point examination in which the grades are normally distributed. The mean is 66 and the standard deviation is 5. If there are 5% A's and 5% F's, 15% B's and 15% D's, and 60% C's, find the scores that divide the distribution into those categories. Round the cutoff scores to the nearest whole number. Round intermediate z-value calculations to 2 decimal places. A:_- B: C: D: --- F: _-_
cw2 For the data shown, answer the questions. Round to 2 decimal places. x 22.3 7 28.9 25.4 17.5 Find the mean: Find the median: Find the standard deviation:
A distribution of values is normal with a mean of 120 and a standard deviation of 4.Find the interval containing the middle-most 68% of scores: Enter your answer using interval notation. Example: (2.1,5.6)
homework #19
Find the area of the shaded region. 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. 70 105 The area of the shaded region is (Round to four decimal places as needed.)
Aу 30+ 25- 20- 15- 10- 5- 2 14 23 2 0+ 48.5 70.5 92.5 114.5 136.5 158.5 x
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.) M X 0.4207
In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores fall between 69 and 81. What are the mean and standard deviation for this data? Standard Normal Curve Mean: Standard Deviation:
Find the area of the shaded region. 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 area of the shaded region is (Round to four decimal places as needed.) 70 125 Q
In Exercise, we have provided simple data sets for you to practice the basics of finding measures of variation. For each data set, determine the a.range.b.sample standard deviation. 4, 0, 5