Test - LEAP 2025 Math Grade 8 Chapter 9

LEAP 2025 Math Grade 8 Chapter 9 Sample

1 pt

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

Which scatter plot shows a negative correlation?

1 pt

What does the answer to the previous question tell us?

As price increases, the number purchased increases.

As price decreases, the number purchased decreases.

As price increases, the number purchased decreases.

There is no relationship between price and number purchased.

1 pt

Jamie wanted to know if there is a relationship between the type of sport played and the grade the student is in. He surveyed 100 students at his middle school. His results are displayed in the two-way relative frequency table below.

Out of all the students, 44% chose __ , making it the most popular sport.

soccer

baseball

football

football and baseball

1 pt

Which sentence is true about the two-way relative frequency table above?

The younger students are, the more likely they are to play baseball.

The older students are, the more likely they are to play baseball.

All students in grades 6th-8th play soccer more than football or base - ball.

All students in grades 6th-8th play baseball more than soccer and football.

Student Name: