Exploring Quantitative Mathematics Concepts

1

Final Exam Fall2021Name Montserrat Frutos

Math 117

Exploring Quantitative Mathematics Concepts

1. The following data is the ages of people buying their first car.

16, 14, 25, 26, 24,

Find the following: 14,16,24,25,26

A. Mean 21

B. Median 24

C. Mode no mode

D. Range 12

E. Standard Deviation 5.56

For standard deviation, use the formula below:

(x- x)2

_______

n-1

x= element

x= mean

n = number of elements

2. Make a scatter graph for the data above. Be sure to label your graph and draw the line of best fit.

DateAmount of sales in dollars

2010500

2011600

2012400

2013700

2018800

3. Make a cumulative frequency chart from the following ages of 20 car buyers.

19,19,19,19,19,20,20,20,20,24,24,24,25,25,25,25,28, 28, 28, 28

Ages TotalRelative FrequencyCumulative Frequency 19 5…