Tom asked the 20 numbers of the football squad at his school how long they spend on the internet per evening. 7 of them spend over 4 hours per evening online. Tom used this information to estimate how many of the 1200 students are his school spend over 4 hours per evening on the internet. A) Assuming that Tom is good with numbers, What was his estimate? B) Write down one thing that could be to make the estimate more reliable

Question

Mathematics

Ernest

10 December, 23:18

Tom asked the 20 numbers of the football squad at his school how long they spend on the internet per evening. 7 of them spend over 4 hours per evening online. Tom used this information to estimate how many of the 1200 students are his school spend over 4 hours per evening on the internet. A) Assuming that Tom is good with numbers, What was his estimate? B) Write down one thing that could be to make the estimate more reliable

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Answers (1)

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Sadie Rodgers · Answer 1

a) 420 students

b) Tom could have asked students that weren't on the football team too. He could have asked more students and from all different areas, not just football.

Step-by-step explanation:

Set up a proportion to solve for the unknown (x)

7/20 = x/1200 then cross multiply to solve for x.

8400=20x then divide by 20 on both sides

x=420