Tywan566
02.03.2020 •
Mathematics
Jack owns a large warehouse (containing thousands of DVD's). Larry owns a gigantic warehouse (containing hundreds of thousands of DVD's). In each case below, which (if either) is more justified in his conclusion? (a) Jack and Larry each randomly pick 100 DVD's from his own warehouse. Jack finds that 7% of those inspected have scratches and concludes that about 7% of DVD's in his warehouse have scratches. Larry finds that 9% of those inspected have scratches and concludes that about 9% of DVD's in his warehouse have scratches.
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Ответ:
60
Step-by-step explanation:
There are 360° used in a whole pie chart
Using proportion
30° → 5 people
360° → 5 × 360 / 30 = 5 × 12 = 60
There are 60 people altogether