Question

I tried everything from adding to dividing, subtracting, multiplying but still no correct answer. Can someone help me out here please? Thank you!

Answer 1

See explanation. You didn't specify on whether the problem asks for a fraction or decimal, so I put both decimal and fraction.

Explanation:

First we answer a:

Total amount of people polled is 291. Number of people who wear glasses is:
`48 + 51 + 26 = 125`

Divide to get the proportion:
`(125)/(291)` which is also equal to: 0.4295532646

Then we answer b:

b asks for the proportion of all above average readers who wear glasses, so the total number would be:
`48 + 25 = 73`. The number of above average readers who wear glasses is then 48.

We then get the proportion:
`(48)/(73)`, which is also equal to 0.6575342466.

Answer 2

a)125/291

b) 48/73

Explanation:

a) total of yes/total asked

b) total above average yes/ total above average (yes and no)