TCAP Success Grade 8 MATH Chapter 9

1 pt

2.

Which of the following accurately describes the relationship between age and value of cars in the graph below?

A

negative

B

no relationship

C

positive

D

cannot be determined

1 pt

6.

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?

A

B

C

D

1 pt

8.

What does the answer to the previous question tell us?

A

As price increases, the number purchased increases.

B

As price decreases, the number purchased decreases.

C

As price increases, the number purchased decreases.

D

There is no relationship between price and number purchased.

1 pt

11.

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

A

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

B

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

C

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

D

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

1 pt

12.

Select characteristics that are found in the graph above. Choose **all** that apply.

A

linear association

B

nonlinear association

C

clustering

D

outliers

E

positive association

F

negative association