# Lesson 1

Planning a Pizza Party

• Let’s write expressions to estimate the cost of a pizza party.

### Problem 6

The value of coins in the pockets of several students is recorded. What is the mean of the values: 10, 20, 35, 35, 35, 40, 45, 45, 50, 60

A:

10 cents

B:

35 cents

C:

37.5 cents

D:

50 cents

(From Algebra1, Unit 1, Lesson 9.)

### Problem 7

The dot plot displays the number of hits a baseball team made in several games. The distribution is skewed to the left.

If the game with 3 hits is considered to be recorded in error, it might be removed from the data set. If that happens:

1. What happens to the mean of the data set?
2. What happens to the median of the data set?
(From Algebra1, Unit 1, Lesson 10.)

### Problem 8

A set of data has MAD 0 and one of the data values is 14. What can you say about the data values?

(From Algebra1, Unit 1, Lesson 11.)