Andre surveyed a random sample of 20 students and found that 13 of them were in favor of having school

start one hour later. The school has 250 students. Make

an estimate, based on Andre's survey for the number of

students in the school who are in favor of having school

start one hour later.

O 65 students

O 87 students

163 students

170 students

163 students

Step-by-step explanation:

First find the percentage of students who were in favor of having school  start one hour later based on the sample of 20 students.

= 13/20 * 100%

= 65%

The apply this percentage to the total number of students in school to find your

= 65% * 250 students

= 162.5

= 163 students

360 different combinations

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%