205k views
0 votes
Gabby assigned a number to each of the 120 athletes at her school and

put the numbers in a box. She randomly chose 25 numbers and found that
10 athletes were female. Use this sample to make an inference about how
many athletes at Gabby's school are female.

User Kumar KL
by
2.7k points

2 Answers

1 vote

Answer:

Step-by-step explanation:48

User Pico
by
3.1k points
4 votes

Answer:

48

Explanation:


(10)/(25)

athletes are female. Now, we need to find what


(x)/(120)

athletes are female.

10 ÷ 25 = 0.4

0.4 × 100 = 40 so


(10)/(25) = 40\%

40% is the experimental probability for the number of female athletes in the sample. 40% of 120 should be about the number of female athletes in the whole school.

120 × 0.4 (or 40%) = 48.

You can infer that 48 athletes in the school are female.

User Amit Moscovich
by
3.1k points