Question 9,
Part 1 of 4
O Points: 0 of 1
Suppose a survey of adults and teens (ages 12–17) in a certain country was conducted to
determine the number of texts sent in a single day.
(a) Construct a relative frequency distribution for adults
(b) Construct a relative frequency distribution for teens,
(c) Construct a side-by-side relative frequency bar graph.
(d) Compare the texting habits of adults and teens
Number of Texts
None
1-10
11-20
21-50
51-100
100 +
(a) Complete the table below.
Adults
Number of Texts
None
1-10
11-20
21-50
51-100
100+

Few number of texts are sent by larger percentage of adults while larger number of text are sent by a larger percentage of teens

TEENS :

Number of TEXTS __Frequency __ Relative freq

None ____________ 13 ___ 13/658 __0.020

1-10______________147 __147/658 __ 0.223

11-20 ____________ 64 __ 64/658 ___0.097

21-50 ___________ 123__ 123/658___ 0.187

51-100___________ 122__ 122/658___ 0.185

100 + ___________ 189___189/658___0.287

Total frequency of teens = (13+147+64+123+122+189) = 658

ADULT :

Number of Texts __ Frequency ___ Relative frequency

None ___________ 171 ____171/1938 = 0.088

1-10 ____________ 985 ___985/1938= 0.508

11-20 ___________246 ___ 246/1938 = 0.127

21-50 __________ 242 ___ 242/1938 = 0.125

51-100___________131 ____ 131/1938 =0.068

100 + ___________163 ____163/1938=0.084

Total frequency of adults = (171+985+246+242+131+163) = 1938

Relative frequency = frequency / total frequency

The side - by - side relative is attached below :

From the side-by-side graph, the percentage of adults who send few text (0 - 20) are more than teens while the percentage of teens who send many text per day (21 - 100+)are more than Adults.

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