A college professor monitored his course website For each day of September, he found and recorde Course website during that day. He organized the distribution table: Variable Mid Point 0-5 5+0/2=2.5 Frequency 8
A college professor monitored his course website For each day of September, he found and recorde Course website during that day. He organized the distribution table: Variable Mid Point 0-5 5+0/2=2.5 Frequency 8
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Please help me with the questions that are rounded. Also please correct me if something it's wrong
Transcribed Image Text:७ न
4.
Problem 1
A college professor monitored his course website activity over the month of September.
For each day of September, he found and recorded the number of students who used the
course website during that day. He organized the data in the following grouped frequency
distribution table:
Variable
Mid Point
12+
10+
8
6
0-5
6-11
12-17
18-23
24-29
●
5+0/2=2.5
8
6+11/2=8.5
12
12+17/2=14.5 4
a. For this scenario, identify the following:
Variable Days of September
●
Individual
Frequency
18+23/2=20.5 4
ey+29/2=26.5 2
8
0-5
→
n = 30
Xxi * fi
6-11
2.58=20
8.5*12= 102
b. Use the table above for calculations to estimate the population mean.
Estimate population meau = Σ Cxi*fi) / N = 315/30
= 10.5//
Interpret the meaning of the population mean in the context of this problem.
14.5*21-58
20.5*4=82
26.5*2= 53
ECxi fi)=315
Students that use website during the day
Students that use website in september
Which variable, mean or median, is the better representation of the center for this data
set? Why? (You do not have to calculate the median to answer this question)
M2
Problem 2
Make a relative frequency histogram of the data in problem 1. Label your axes.
bl...
4
12-17
Population
Population size →→ Total number of students that used website in Septemb
Number of days when at least 12 students used the website
(30
18-23
ressor.
2
24-29
1
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