LEAP 2025 Math Grade 8 Chapter 9

LEAP 2025 Math Grade 8 Chapter 9 Sample

1 pt
1.

To see if height is correlated to weight, Sherry asks 10 people what their height and weight is. The data is listed below.

(63", 150 lb), (67", 160 lb), (72", 190 lb), (62", 180 lb), (64", 130 lb), (70", 210 lb), (63", 120 lb), (68", 165 lb), (65", 145 lb), and (68", 220 lb)

Which graph represents this data with an accurate line of best fit?

1 pt
3.

What does the answer to the previous question tell us?

1 pt
7.

A bakery collected data about its best-selling items in the morning vs. the afternoon. The two best sellers all day were croissants and banana muffins. The combined number of both croissants and banana muffins sold during the day was 80. The bakery came up with the following data.

• 40% of the purchases were banana muffins.

• 75% of the customers made purchases in the morning.

• 62.5% of the customers who purchased banana muffins did so in the morning.

Complete the table given the data above.

Reset

Morning

Afternoon

Total

Croissants

Drop answer here
Drop answer here
Drop answer here

Banana Muffins

Drop answer here
Drop answer here
Drop answer here

Total

Drop answer here
Drop answer here
Drop answer here

80

60

48

40

32

20

20

12

8

1 pt
9.

Part A

Below are the results from a recent survey. It shows the type of pet home owners have vs. home renters.

Reset

Dog

Cat

Bird

Fish

Total

Owner

Drop answer here
Drop answer here
Drop answer here
Drop answer here
Drop answer here

Renter

Drop answer here
Drop answer here
Drop answer here
Drop answer here
Drop answer here

Total

Drop answer here
Drop answer here
Drop answer here
Drop answer here
Drop answer here

0

1

1

1

2

2

3

3

4

6

7

7

10

13

20

1 pt
.

Part B.

What conclusions can you make about renters and cats?