Task 2 (25 mins) 1- If marks of 20 students in one class out of 100 were as the following (Screen shot of tables, figures, and Excel file are required): 67 45 62 74 51 70 95 54 39 43 47 73 20 35 57 85 54 29 49 a. Find the mean, median and standard deviation of these marks. b. Construct the frequency table using interval width of 10 marks. c. Create a histogram chart (Present data in a method that can be understood by a non- technical audience). d. Find the probability of each age interval and represent that using histogram (Present data in a method that can be understood by non- technical audience). e. From the graph in part d, find the probability that student get a grade of 70 or less and show how you find that on the figure.

Task 2 (25 mins) 1- If marks of 20 students in one class out of 100 were as the following (Screen shot of tables, figures, and Excel file are required): 67 45 62 74 51 70 95 54 39 43 47 73 20 35 57 85 54 29 49 a. Find the mean, median and standard deviation of these marks. b. Construct the frequency table using interval width of 10 marks. c. Create a histogram chart (Present data in a method that can be understood by a non- technical audience). d. Find the probability of each age interval and represent that using histogram (Present data in a method that can be understood by non- technical audience). e. From the graph in part d, find the probability that student get a grade of 70 or less and show how you find that on the figure.

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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Richard’s doctor had told him he needed to keep track of his blood sugar readings. Listed below are his 20 latest readings. He wanted to create a visual aid for himself in order to see how his blood sugar was doing. 75 125 110 82 178 209 150 130 120 142 90 98 107 163 135 129 147 152 110 100 A. Create a frequency distribution table for the given data set. B. Create a histogram for the data set. C. Describe the distribution of the data.
Ms. Garcia gave her students a biology test last week. Here are the test scores for each of the sixteen students. 83 79 78 82 77 81 Test scores 80 78 Send data to calculator Test scores 71.5 to 75.5 75.5 to 79.5 79.5 to 83.5 (a) Complete the grouped frequency distribution for the data. (Note that the class width is 4.) 83.5 to 87.5 87.5 to 91.5 86 X 90 85 74 84 74 73 89 Frequency S (b) Using the classes from part (a), draw the frequency polygon for the data. Note that you can add or remove classes from the figure. Label each class with its midpoint. Frequency 4+ 3+ 2+ L Test scores 0:00 00:0 X ? 10 A 8 Aa
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The following refer to the following data set: 41 56 41 97 96 34 95 52 23 67 What is the mean (¯x) of this data set?mean = (Please show your answer to one decimal place.)What is the median of this data set?median = What is the mode of this data set?mode =
find the mean, median, and range of the set of numbers. Then, use Excel to create a frequency table and a histogram of the test scores. Make sure to label your tables and graphs appropriately A researcher is studying reaction times in mice. The reaction times in milliseconds (ms) for thirty mice are shown below. 66 384 539 578 166 741 874 384 221 178 176 675 275 15 845 397 271 655 681 702 63 823 364 194 755 744 557 776 69 857
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. Graph/chart Midpoint x xt Ay 30+ 2 70.5 141 24 14 92.5 1295 25- 24 114.5 2748 20- 7 136.5 955.5 14 15- 3 158.5 475.5 10- 7 ΣΤ- 50 Exf = 5615 5- Find the mean of the data set. 48.5 70.5 92.5 114.5 136.5 158.5 x = 112.3 (Round to the nearest tenth as needed.) Complete the table. Round values to the nearest tenth as needed. Midpoint x (x-x)? (x-x)?f Print Done X-X 70.5 - 41.8 1747.2 3494.5 92.5 1295 85556.3 119787.5
We are going to calculate the mean, median, and mode for two sets of data. Please show your answer to one decimal place if necessary. Here is the first data set. 68 71 38 27 51 47 40 66 38 97 69 a. what is the mean (T) of this data set? b. What is the median of this data set? c. What is the mode of this data set? Here is the second data set. 97 71 80 29 71 55 d. What is the mean (T) of this data set? e. What is the median of this data set? f. What is the mode of this data set? 44 76 68 56
Refer back to the histogram from question #4. Compute the mean number of shipping days Compute the median number of shipping days Write the 5-number summary for this data. Create box plot.
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