3. To study the telecommunication in households in Flandres, for each household the following two variables were measured • the numbers of cell phones in the household the monthly household expenditure on telecommunication in euro expenditure relative frequency [0,5[ [5, 15[ [15, 30[ [30, 50[ [50, 100[ 0.08 0.24 0.30 0.33 0.05 3 15% 2 23% 4 5% 0 22% 35% a. Draw a suitable histogram for the monthly expenditure. Determine the modal value. b. Determine the average number of cell phones per household, together with the standard deviation (you may assume that the sample size is large). c. Which variable has relatively the heighest spread: the number of cell phones of the monthly expenditure (you may assume that the sample size is large) ? d. Family Peters owns 2 cell phone and has a monthly expenditure of 43 euro. Compared to the other households in the sample, which value is relatively the highest, the number of cell phones or the monthly expenditure? e. Determine the cumulative distribution function for the number of cell phones. Use the graph to determine the cumulative frequency for 3 cell phones in a household. f. The total telecommunication expenses for a household, given by the expenditures in the table above, are increased by 21% taxes and a fixed subscription cost of 5 euro per month. Determine the average and the standard deviation of the total household telecommunication expenses.
3. To study the telecommunication in households in Flandres, for each household the following two variables were measured • the numbers of cell phones in the household the monthly household expenditure on telecommunication in euro expenditure relative frequency [0,5[ [5, 15[ [15, 30[ [30, 50[ [50, 100[ 0.08 0.24 0.30 0.33 0.05 3 15% 2 23% 4 5% 0 22% 35% a. Draw a suitable histogram for the monthly expenditure. Determine the modal value. b. Determine the average number of cell phones per household, together with the standard deviation (you may assume that the sample size is large). c. Which variable has relatively the heighest spread: the number of cell phones of the monthly expenditure (you may assume that the sample size is large) ? d. Family Peters owns 2 cell phone and has a monthly expenditure of 43 euro. Compared to the other households in the sample, which value is relatively the highest, the number of cell phones or the monthly expenditure? e. Determine the cumulative distribution function for the number of cell phones. Use the graph to determine the cumulative frequency for 3 cell phones in a household. f. The total telecommunication expenses for a household, given by the expenditures in the table above, are increased by 21% taxes and a fixed subscription cost of 5 euro per month. Determine the average and the standard deviation of the total household telecommunication expenses.
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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could you write with a pen and paper?
Transcribed Image Text:3. To study the
telecommunication in households in Flandres, for each household
the following two variables were measured
• the numbers of cell phones in the household
•
the monthly household expenditure
on telecommunication in euro
expenditure relative frequency
[0,5[
[5, 15[
[15, 30
[30, 50[
[50, 100[
0.08
0.24
0.30
0.33
0.05
3
15%
2
23%
5%
0
22%
35%
a. Draw a suitable histogram for the monthly expenditure. Determine the modal
value.
b. Determine the average number of cell phones per household, together with
the standard deviation (you may assume that the sample size is large).
d.
c. Which variable has relatively the heighest spread: the number of cell phones
of the monthly expenditure (you may assume that the sample size is large) ?
Family Peters owns 2 cell phone and has a monthly expenditure of 43 euro.
Compared to the other households in the sample, which value is relatively the
highest, the number of cell phones or the monthly expenditure ?
e. Determine the cumulative distribution function for the number of cell phones.
Use the graph to determine the cumulative frequency for 3 cell phones in a
household.
f. The total telecommunication expenses for a household, given by the
expenditures in the table above, are increased by 21% taxes and a fixed
subscription cost of 5 euro per month. Determine the average and the standard
deviation of the total household telecommunication expenses.
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VIEWStep 3: Determine the average number of cell phones per household together with the standard deviation.
VIEWStep 4: Determine which variable has relatively highest spread.
VIEWStep 5: Determine which value is relatively higher, the number of cell phones or the monthly expenditure.
VIEWStep 6: Determine the cumulative distribution function for the number of cell phones.
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