Question

7th grade math help

Answer 1

A certain college randomly selected 30 freshman students who completed college algebra during their first semester. Fifteen students were chosen from students who took the course at night and 15 students were chosen from students who took the course during the day. The following statistical information was calculated from their final grades.

Day Night
Mean 76 68
Median 68 72
Mode 64 72
Range 38 53

Based on these samples, what generalization can be made? (Assume that a score of 70 or greater is a passing score.)

The range of scores was larger for the day students than for the night students.

The median score for the day students was higher than the median score for the night students.

The mean score for the night students was higher than the mean score for the day students.

The mean score for the day students was higher than the mean score for the night students.

Answer 2

ooh me me me :)

ok, so do you know how to find the mean or mode?

Answer 3

A survey was conducted on the salaries of 20 randomly selected college graduates with degrees in the same subject area. Each person surveyed graduated within the same 5-year period. Ten of the people surveyed attended a private university, while the other 10 people surveyed attended a public university of roughly the same size.

Private Public
First Quartile $58,000 $35,000
Second Quartile (Median) $71,000 $42,000
Third Quartile $85,000 $54,000

Based on the samples, what generalization can be made?

The top ten percent of both the private and public university graduates surveyed earned more than $60,000 annually.

The top twenty-five percent of both the private and public university graduates surveyed earned more than $50,000 annually.

The interquartile range for private universities is $27,000 more than for public universities.

The interquartile range for public universities is $19,000 more than for private universities.