2. Consider the frequency distribution of exam scores below.FrequencyClass50<6060<7070<801480<901790<10012a. Develop a relative frequency distribution and a percent frequency distributionb. Develop a cumulative frequency distribution and a cumulative percentfrequency distribution.c. Draw a percent frequency polygon.d. Draw a percent frequency ogive.

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Answered: 2. Consider the frequency distribution…

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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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 the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? 14 5 11 2 3 19 6 15 15 18 1 18 11 4 13 0 14 6 12 16 Complete the table, starting with the lowest class limit. (Simplify your answers.) Class Frequency Midpoint Relative Frequency Cumulative Frequency nothing-nothing nothing nothing nothing nothing nothing-nothing nothing nothing nothing nothing nothing-nothing nothing nothing nothing nothing nothing-nothing nothing nothing nothing nothing nothing-nothing nothing nothing nothing nothing Which class has…
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 the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? 8 8 36 14 31 39 32 36 19 3 4 25 26 12 16 9 Complete the table, starting with the lowest class limit. (Simplify your answers.) Relative Cumulative Class Frequency Midpoint Frequency Frequency Which class has the greatest frequency? The class with the greatest frequency is from to Which class has the least frequency? The class with the least frequency is from | to
Use the Histogram tool to develop a frequency distribution and histogram for the number of months as a customer of the bank in the data below. Compute the relative and cumulative relative frequencies and use a line chart to construct an ogive. Complete the frequency distribution for the months as a customer, and compute the relative and cumulative relative frequencies. (Type integers or decimals rounded to three decimal places as needed.) Bins Frequency Relative Frequency Cumulative Relative Frequency 10 enter your response here enter your response here enter your response here 20 enter your response here enter your response here enter your response here 30 enter your response here enter your response here enter your response here 40 enter your response here enter your response here enter your response here 50 enter your response here enter your response here enter your…
Find the mean for the set of grouped data. The mean is (Round to two decimal places if needed.) Interval 0.5-2.5 2.5-4.5 4.5-6.5 6.5-8.5 Frequency 1 8 5 1
Che
Use the frequency distribution shown below to construct an expanded frequency distribution. High Temperatures (°F) 27-37 Class 16-26 38-48 49-59 60-70 71-81 82-92 Frequency, f 17 43 67 68 77 67 26 Complete the table below. (Round to the nearest hundredth as needed.) Relative frequency High Temperatures (F) Cumulative frequency Class Frequency, f Midpoint 16-26 17 27-37 43 38-48 67 49-59 68 60-70 77 71-81 67 82-92 26 2.
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 the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? 15 14 4 7 19 12 16 5. 10 17 17 18 14 10 6 Complete the table, starting with the lowest class limit. (Simplify your answers.) Relative Cumulative Class Frequency Midpoint Frequency Frequency Which class has the greatest frequency? The class with the greatest frequency is from to Which class has the least frequency? The class with the least frequency from to
2. Using the frequency/percentage distribution table below to find the median, 12t percentile, 25th percentile (1" quartile), 75th percentile (3rd quartile) and inter-quartile range (1QR) for the variable "mumber of rooms in respondents' home or apartment." Write one sentence interpreting each statistics. Number of rooms Cumulative Frequency Percent Valid Percent Percent Valid 153 room 7 .8 .8 244 1.2 1.2 2.0 3 968 4.7 4.9 6.9 2507 12.1 12.8 19.7 3758 18.1 19.1 38.8 3972 19.1 20.2 59.1 2965 14.3 15.1 74.2 2186 10.5 11.1 85.3 1146 5.5 5.8 91.1 10 868 4.2 4.4 95.5 11 373 1.8 1.9 97.4 12 217 1.0 1.1 98.5 13 77 4 4 98.9 14 35 2 99.1 15 22 .1 .1 99.2 16 15 .1 .1 99.3 17 47 2 99.5 18 40 2 99.8 19 30 .1 99.9 20 9 .0 .0 99.9 21 5 100.0 22 .0 100.0 Total 19642 94.4 100.0 Missing N/A 1160 5.6 Total 20802 100.0
Using the frequency distribution shown here: **Note** see attached copies of frequency scale. Class limits Class boundaries Class midpoints Frequency Cumulative frequency 21 - 25 20.5 - 25.5 23 2 2 26 - 30 25.5 - 30.5 28 4 6 31 - 35 30.5 - 35.5 33 0 6 36 - 40 35.5 - 40.5 38 4 10 41 - 45 40.5 - 45.5 43 4 14 46 - 50 45.5 - 50.5 48 3 17 51 - 55 50.5 - 55.5 53 2 19 (a)How many values are in the class 30.5 - 35.5 ? The number of values in the class 30.5 - 35.5 is . (b)How many values fall between 25.5 and 45.5 ? The number of values that fall between 25.5 and 45.5 is . (c)How many values are below 40.5 ? The number of values that are below 40.5 is .…
Find the mean of the grouped frequency distribution. Interval Frequency 0-9 4 10-19 20-29 30-39 40-49 50-59 5 10 9 3 1 ESS D What is the mean of the grouped data? (Round to the nearest hundredth as needed.)
Use the frequency distribution shown below to construct an expanded frequency distribution. High Temperatures (°F) Class 15-25 26-36 37-47 48-58 59-69 70-80 81-91 Frequency, f 17 43 68 69 74 68 26 Complete the table below. High Temperatures (°F) (Round to the nearest hundredth as needed.) Relative Cumulative Class Frequency, f Midpoint frequency frequency 15-25 17 20 0.05 17 26-36 43 31 0.12 60 37-47 68
What percent of students scored above 600? show your work.

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2. Consider the frequency distribution of exam scores below. Frequency Class 50<60 60<70 5 70<80 14 80<90 17 90<100 12 a. Develop a relative frequency distribution and a percent frequency dis b. Develop a cumulative frequency distribution and a cumulative percer frequen cy distribution