Question

Xavier created a scatterplot and a trend line for data that he collected by comparing the number of minutes he spent playing a game and the number of levels he passed.

According to the graph, which combination of minutes played and levels passed seem most likely to be possible?

A) 2 minutes played and 3 levels passed

B) 17 minutes played and 35 levels passed

C) 20 minutes played and 9 levels passed

D) 50 minutes played and 19 levels passed
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Answer 1

c

Explanation:

Answer 2

Option (C)

Explanation:

By using regression line calculator,

Equation of the regression line will be,

y = 0.4881x - 0.85714

Here y = Levels passed

x = Number of minutes played

Now we can check every option given.

Option (A)

For x = 2 minutes,

y = 0.4881(2) - 0.85714

= 0.11906

≈ 0.1

False.

Option (B)

For x = 17 minutes,

y = 0.4881(17) - 0.85714

= 8.2971 - 0.85714

= 7.44

≈ 7th level

False.

Option (C)

For x = 20 minutes

y = 0.4881(20) - 0.85714

= 9.762 - 0.85714

= 8.9

≈ 9th level

True.

Option (D)

For x = 50 minutes,

y = 0.4881(50) - 0.85714

= 24.405 - 0.85714

= 23.54786

≈ 24th level

False.

Therefore, Option (C) will be the correct option.