Using 10 classes construct a frequency distribution.
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A: Given frequency distributionTest GradesF30-39840-49750-59560-69470-79380-89290-991
The following are final grades (in terms of percentages) from a class of 20 students. Using 10 classes construct a frequency distribution.
|
70 |
2 |
75 |
70 |
84 |
90 |
92 |
84 |
85 |
80 |
|
60 |
72 |
78 |
80 |
81 |
72 |
79 |
78 |
76 |
86 |
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- Based on the following frequency distribution, what proportion of students had a grade of 60- 69? Test Grades F 30 - 39 8 40 - 49 7 50 - 59 5 60 - 69 4 70 - 79 3 80 - 89 2 90 - 99 1An environmental organization releases an annual beach report card based on water quality. The grades for 20 beaches in three counties in a certain state during dry weather are given below. B A+ F A+ F C A+ A+ A+ A+ A+ B A+ B A+ C C A A+ A Summarize the dry weather grades by constructing a relative frequency distribution.The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes. In the table, include themidpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? 21 24 22 10 29 32 2 24 25 39 25 38 7 26 23 27 21 26 0 28 Class Frequency Midpoint Relative Frequency Cumulative Frequency
- Kellie asks 10 students at her high school their ages and enters the responses in the table below. Ages 15 17 16 17 18 18 16 17 15 14 Use a calculator to create a relative frequency distribution. What is the relative frequency of students under 16 years old?Find the following frequency distribution: Age at the First Car Purchase (in Years). Class 16 - 19 20 - 23 24 - 27 28 - 31 32 - 35 Frequency 12 8 15 12 9 What is the total frequency?The following data represents the age of 30 lottery winners. 20 | 31 31 34 37 37 39 41 42 45 48 48 50 52 52 53 58 59 59 65 66 71 71 72 74 76 79 79 79 88 Complete the frequency distribution for the data.
- 89 100 97 90 59 53 89 92 68 94 62 73 68 67 88 59 77 79 74 99 67 61 97 94 85 76 77 86 64 76 97 81 70 92 76 93 51 75 74 52 89 54 75 83 66 55 50 55 87 87 63 97 50 87 85 63 92 92 73 52 72 86 86 98 76 75 90 97 73 68 87 65 64 56 64 1. Use the above data to prepare a frequency distribution table with 6classes. 2. Find the measures of center. 3. Analyze the measures of center. 4. Prepare a box-plot, correctly identifying the 5-number summary, upper and lower fences, and outliers (if any.) Properly sketch the box-plot. 5. Find the measures of variance. 6. List all data that are found in each of the following categories: 3 standard deviations below the mean, 2 standard…From these values, construct a grouped cumulative frequency distribution. 100 91 65 96 102 105 100 125 115 102 100 71 85 122 90 108 101 105 100 89 114 109 111 135The following table gives the frequency distribution of the commute distances (in miles) for the population of 50 instructors at a local community college. Commute Distance (miles) Frequency 11 - 15 9 16 - 20 14 21 - 25 12 26 - 30 8 31 - 35 5 36 - 40 2 What is the Class Width for this frequency distribution? Class Width = [cw] miles = ______________
- 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 1Construct a frequency distribution of the data collected. Use classes with the first class ranging from 51-60 55 70 80 85 90 100 55 75 80 85 90 100 60 75 85 85 90 100 60 80 85 90 95 100 65 80 85 90 95 10045. Find the mean of this frequency table. Price, p ($) Frequency, f 730 1 785 3 815 846 910 957 967 983 A. $874.13 B. $922.46 C. $851.50 D. $885.56 34 2 7 25 1
