a) How many people sent five e-mail messages?

b) How many people sent six or fewer e-mail messages?

c) How many people were included in the survey?

d) Construct a frequency distribution from the frequency polygon.

e) Construct a histogram from the frequency distribution in part (d).

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Part 1

Number of E-mail Messages Sent per Day

02468101202468NumberofMessagesSentNumberofPeople

A frequency polygon titled "Number of E-mail Messages Sent per Day" has a horizontal axis labeled "Number of Messages Sent" from 0 to 12 in increments of 1 and a vertical axis labeled "Number of People" from 0 to 8 in increments of 1. Plotted points are connected by line segments from left to right. The heights of the plotted points are as follows, where the number of messages sent is listed first and the number of people is listed second: 2, 0; 3, 2; 4, 4; 5, 6; 6, 4; 7, 3; 8, 7; 9, 4; 10, 1; 11, 0.

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Part 1

a) There were

66

people who sent five e-mail messages.

(Type a whole number.)

Part 2

b) There were

1616

people who sent six or fewer e-mail messages.

(Type a whole number.)

Part 3

c) There were

3131

people included in the survey.

(Type a whole number.)

Part 4

d) Construct a frequency distribution from the frequency polygon.

Number of Messages	Number of People
33	22
44	44
55	66
66	44
77	33
88	77
99	44
1010	11
	(Type whole numbers.)

Part 5

e) Construct a histogram from the frequency distribution in part (d).

A.

Number of E-mail Messages Sent

3100246810NumberofMessagesSentNumberofPeople

A histogram titled "Number of E-mail Messages Sent" has a horizontal axis labeled "Number of Messages Sent" from 3 to 10 in increments of 1 and a vertical axis labeled "Number of People" from 0 to 10 in increments of 2. The histogram contains vertical bars of width 1, where one vertical bar is centered over each of the horizontal axis labels. The heights of the bars are as follows, where the horizontal axis label is listed first and the height is listed second: 3, 2; 4, 4; 5, 6; 6, 4; 7, 3; 8, 7; 9, 4; 10, 1.

B.

Number of E-mail Messages Sent

3100246810NumberofMessagesSentNumberofPeople

A histogram titled "Number of E-mail Messages Sent" has a horizontal axis labeled "Number of Messages Sent" from 3 to 10 in increments of 1 and a vertical axis labeled "Number of People" from 0 to 10 in increments of 2. The histogram contains vertical bars of width 1, where one vertical bar is centered over each of the horizontal axis labels. The heights of the bars are as follows, where the horizontal axis label is listed first and the height is listed second: 3, 1; 4, 2; 5, 3; 6, 4; 7, 4; 8, 4; 9, 6; 10, 7.

C.

Number of E-mail Messages Sent

3100246810NumberofMessagesSentNumberofPeople