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Section 9 and 10 review part 2

Authored by Tamara Sutherland

Mathematics

9th Grade

Used 6+ times

Section 9 and 10 review part 2
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11 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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A company is doing market research on a new product and have selected a random sample of potential customers to help choose the most effective TV commercial. The two-way frequency table represents the results. How many people are likely to buy after watching version 2 of the commercial?

99

20

30

79

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Correlation or Causation?

The speed you drive and the amount of fuel you use

Correlation

Causation

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There's a correlation coefficient of r=0.3 between the amount of ice cream you eat and your age. Which statement best describes the correlation?

Strong positive

Weak positive

Strong negative

Weak negative

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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After performing analyses on a set of data, Mrs. Schoeneck examined the scatter plot of the residual values for each analysis. Which residual plot indicated the best linear fit for the data?

A

B

C

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The data below represents the number of essays that students in Mr. Ji's class wrote.

2, 3, 5, 5, 6, 7, 8, 8, 11

Which box plot correctly summarizes the data?

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Media Image
Media Image
Media Image

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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What is the equation of the line of best fit

y= -2x + 10

y= 10x+ 2

y=2x+10

y= 10

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Which of the following statements is true?

Top plot has a smaller median

Top plot has a smaller minimum

Bottom plot has a smaller range

75% of top plot is over 70

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