Stats Section 2.1 and 2.2

Stats Section 2.1 and 2.2

12th Grade

20 Qs

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Stats Section 2.1 and 2.2

Stats Section 2.1 and 2.2

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Hard

CCSS
HSF-LE.A.1B

Standards-aligned

Created by

Anthony Clark

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Of the following, which is true of the correlation coefficient, r?

The value of r does not depend on the units of y and x.

r = 0 indicates a perfect correlation between x and y.

r cannot be less than 0 or greater than 1.

The value of r depends on which of two variables is labeled x.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The correlation between the heights of fathers and the heights of their (fully grown) sons is r = 0.52. This value was based on both variables being measured in inches. If fathers' heights were measured in feet (one foot equals 12 inches), and sons' heights were measured in furlongs (one furlong equals 7920 inches), the correlation between heights of fathers and heights of sons would be

much smaller than 0.52

slightly smaller than 0.52

unchanged: equal to 0.52

slightly larger than 0.52

much larger than 0.52

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

All but one of the following statements contains an error. Which statement could be correct?

There is a correlation of 0.54 between the position a football player plays and his weight.

We found a correlation of r = –0.63 between gender and political party preference.

The correlation between the distance travelled by a hiker and the time spent hiking is r = 0.9 meters per second.

We found a high correlation between the height and age of children: r = 1.12.

The correlation between mid-August soil moisture and the per-acre yield of tomatoes is r = 0.53.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What type of relationship does this graph have?

Positive 

Negative

No Relationship

Constant

Tags

CCSS.HSF-LE.A.1B

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Describe the correlation coefficient if

r = 0.90

Positive, weak

Positive, strong

Negative, weak

Negative, strong

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Describe the correlation, if the correlation coefficient is r = -0.26

Positive, weak

Negative, weak

Positive, strong

Negative, strong

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The table shown is comparing a person's foot length to their height in cm. What is the response variable?

Height

Foot length

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