Reference no: EM132474106

For each set of numbers, find the mean, median and mode. Round to nearest tenth.

1. 45, 37, 28, 46, 51

2. 4.9, 7.1, 6.8, 4.9, 5.3, 6.8

3. A GPA is a weighted grade average. It is the total points earned divided by the total credit hours for the courses a student has completed. The total points per course is calculated as points per letter grade times the credit hours for the course. Therefore, a course with 3 hours will contribute more to the GPA than one with 2 hours, even though the letter grades may be the same. 

Sandoval's grades are listed below for 5 courses last semester. The grade weightings are as follows: A=4 points: B=3 points: C=2 points: D=1 point 

Find the grade point average. Round to the nearest hundredth if necessary.

4. The following pulse rates were recorded for a group of students:

78, 80, 66, 68, 71, 64, 82, 71, 70, 65, 70, 75, 77, 86, 72 

How many pulse rates were higher than the mean?

5. In a math class the following assignment grades were recorded for a student:

93, 85, 89, 79, 88, 92

Find the mean of the grades, rounded to the nearest hundredth. 

In your answers to the questions below, ratios as fractions in simplest form (reduced).

The following circle graph shows the result of a survey of 700 university students about their accommodations.  

320 parent/guardian

124 off rental

62 own off campus housing

14 other arrangements

180 campus housing

6. Find the ratio of students living in off-campus rentals to the total number of students

7. Find the ratio of students living in campus housing to students living in off-campus rentals. 

8. Find the ratio of students living in either campus housing or parent or guardian's home to all those that have other housing.