In a sample of 100 people, 57 completed only high school, 23 went on to complete only some college, 13 went on to complete a two-year or four-year college, and 7 went on to graduate school. What proportion of the sample does not have a two-year or four-year college degree?

a. .07

b. .13

c. .80

d. .87

0.87

Step-by-step explanation:

Given that in a sample of 100 people, 57 completed only high school, 23 went on to complete only some college, 13 went on to complete a two-year or four-year college, and 7 went on to graduate school

Out of 100 people only 13 people went on to complete a two year or five year college.

Hence out of 100 people people who does not have a two year or four year college degree = 100-13 = 87

proportion of the sample does not have a two-year or four-year college degree=

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.