# Section 6.4 - Reasoning About Data

5 Questions | Total Attempts: 239  Settings  Complete the following questions

• 1.
A data set the shows no clear trend or pattern can be used to
• A.

Write a conjecture

• B.

Support a conjecture

• C.

Reject a conjecture

• D.

Find an outlier

• 2.
Which of these lines or curves of best fit would support a conjecture that as outside temperature increases, the fewer people go to the athletic club
• A.

A line of best fit that shows a positive slope

• B.

A line of best fit that shows a negative slope

• C.

A line of best fit that shows a zero slope

• D.

A curve of best fit that shows a slight upward curve

• 3.
Keren used the data in the table to make a conjecture about whether starting teacher salary and the amount spent per pupil are related.  To assure that her conjecture is valid, what should Keren do?
• A.

Rewrite her conjecture to include the outlier

• B.

Extend the curve of best fit

• C.

Use a line of best fit instead of a curve

• D.

Gather more data

• 4.
When is it not valid to use the line of best fit to make prdications about the general population?
• A.

When the data set is small

• B.

When the data shows a smooth curve

• C.

When there is an outlier

• D.

When there is a negative slope

• 5.
To support a conjecture, a plot must show which of the following?1) A positive correlation 2) A negatice correlation 3) A trend or pattern
• A.

1 only

• B.

2 only

• C.

3 only

• D.

1, 2, and 3

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