SOLUTION: Help with comprehending this kind of graph :( In a survey, 250 shoppers were asked whether they have access to a computer at home and if they have a personal e-mail account. The

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Help with comprehending this kind of graph :( In a survey, 250 shoppers were asked whether they have access to a computer at home and if they have a personal e-mail account. The      Log On


   

Question 1181816: Help with comprehending this kind of graph :(
In a survey, 250 shoppers were asked whether they have access to a computer at home and if they have a personal e-mail account. Their responses are summarized in the following table.
Table: https://imgur.com/a/iuDC7wc
Answer by math_tutor2020(3817) About Me  (Show Source):
You can put this solution on YOUR website!

Part A

Here's the original table
E-mailNo e-mail
Computer7317
No computer22138

Let's compute the row and column totals (eg: 73+17 = 90 in the first row)
E-mailNo e-mailTotal
Computer731790
No computer22138160
Total95155250

The question in part A is asking the percentage of shoppers who do not have computer access. We see that 22+138 = 160 people do not have a computer at home.
This is out of 250 people surveyed.

Therefore, 160/250 = 0.64 = 64% of the shoppers do not have a computer at home.

Answer: 64%

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Part B

Use the table we made in part A. Specifically, the second table is the most useful here.

There are 95 people who have email (since 73+22 = 95) out of 250 shoppers total

95/250 = 0.38 = 38% of the shoppers have email.

Answer: 38%