1. Tracey is constructing a frequency distribution using bowling scores. the lowest number of the set of scores is 40, and the highest is 189. if tracey decides to group the numbers into 15 intervals, what would the width of the interval be?

a) 5

b) 10

c) 15

d) insufficient information 

2. In a group of 10 scores, the largest score is increased by 48 points. what effect will this have on the mean of the scores? 

a) it will remain unchanged

b) it will increase by 48 points

c) it will increase by 4.8 points

d) not enough information 

(a) Find the intervals of increase or decrease.

(b) Find the local maximum and minimum values.

(c) Find the intervals of concavity and the inflection points.

(d) Use the information from parts (a)–(c) to sketch the graph.

Check your work with a graphing device if you have one.

(a) Find the intervals of increase or decrease.

(b) Find the local maximum and minimum values.

(c) Find the intervals of concavity and the inflection points.

(d) Use the information from parts (a)–(c) to sketch the graph.

Check your work with a graphing device if you have one.

(a) Find the intervals of increase or decrease.

(b) Find the local maximum and minimum values.

(c) Find the intervals of concavity and the inflection points.

(d) Use the information from parts (a)–(c) to sketch the graph.

Check your work with a graphing device if you have one.