Calculate the median for the following frequency distribution:MarksNo. of StudentsMarksNo. of Students45-501020-253140-451515-202435-402610-151530-35305-1025-3042

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Answered: Calculate the median for the following…

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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Where did I go wrong in the 70-79 box
A random sample of 30 male college students was selected, and their heights were measured. The heights (in inches) are given below. 67 74 67| 72 67 68 67 70 66 69 68 71 72 67 73 68 69 68 68 68 66 73 70 68 74 73 66 67 68 67 (a) Complete the frequency distribution for the data. Make sure to enter your answers for the relative frequency as decimals, rounded to the nearest tenth. Height Frequency Relative Frequency 66 67 68 69 70 71 72 73 74
Based on the following frequency distribution, what percent of students had a grade of 49 or less? Test Grades F 30 - 39 8 40 - 49 7 50 - 59 5 60 - 69 4 70 - 79 3 80 - 89 2 90 - 99 1
Determine the median for the following frequency distribution table: Class Interval Frequency 0 – 3 4 - 7 3 8 – 11 12 – 15 16 – 19 4 3 20 – 23 3
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Which one of the following can be taken as frequency while calculating median for the grouped data? a. Preceding frequency of the median class b. Both preceding and succeeding frequencies of the median class c. Succeeding frequency of the median class d. Frequency of the median class
1. The following data represents the heart beat rate, in bpm, of patients in a hospital. (a) Create a frequency distribution with 5 classes and draw a histogram for the data. Label the class boundaries on the horizonal axis of your histogram. (b) Describe the shape of the histogram. 89 84 94 91 78 83 96 93 76 77 78 78 58 99 75 58 79 78 81 87 88 90 79 43 90
When 30 randomly selected customers left a convenience store, each was asked the number of items he or she purchased. Construct an ungrouped frequency distribution for the data. Create a histogram for the data in #7. Create a frequency polygon for the data in #7. 2 10 5 4 7 6 3 9 7 6 7 6 4 9 7 6 3 4 3 5 6 10 10 9 10 4 3 2 8 5
3.Construct a grouped frequency distribution with 8 classes. Also find out cumulative frequencies and relative frequencies. 102 104 140 136 152 132 158 173 128 141 130 133 147 148 141 129 133 137 179 147 152 114 124 138 129 164 135 128 139 154 168 148 152 116 107 136 167 143 139 152
Use the given data for creation of a table with lowest limit as the lowest value and class interval of 5. Use that table for calculation of cumulative frequency, reverse cumulative frequency, relative frequency. Use Excel for these calculations. Then calculate the mean, median and mode of the data through that frequency table by manual calculation. 58 54 85 88 89 88 82 81 77 63 86 52 48 42 69 46 41 84 40 57 57 54 60 43 62 50 73 89 56 48 52 51 83 46 81 60 85 89 51 60 58 63 42 64 76 89 80 70 41 80 74 57 79 82 77 63 69 55 90 79 67 87 48 57 81 58 68 66 61 55 48 68 56 57 89 77 86 87 49 75 73 64 50 49 80 74 80 65 79 82 46 57 81 60 80 48
The following table shows the results of a survey of randomly selected residents of Mexico. Age 0-14 15-29 30-64 >64 Percentage 28 26 36 10 (a) Find the associated relative frequency distribution. HINT [See Quick Example 3.] 0-14 15-29 30-64 >64 (b) Find the relative frequency that a resident of Mexico is not from 15 to 64 years old.
Using the following set of data, complete the frequency table below using 12 intervals then find the mean, median, and mode. Use a divisor of 10 in finding the first class.

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Calculate the median for the following frequency distribution: Marks No. of Students Marks No. of Students 45-50 10 20-25 31 40-45 15 15-20 24 35-40 26 10-15 15 30-35 30 5-10 25-30 42