Statistical Analysis Vocabulary

Question 1

The scatter plot shows the number of hours Alex practiced basketball each week (x‑axis) and the number of baskets he made in a game that week (y‑axis). The plotted points are: (1,2), (2,4), (3,6), (4,8), (5,10), and (6,3). Which statement correctly uses the word “correlation” to describe the relationship shown?

Accepted Answer

There is a moderate positive correlation between practice time and baskets made.

Answer

There is a strong positive correlation between practice time and baskets made.

Answer

There is a negative correlation between practice time and baskets made.

Answer

There is no correlation between practice time and baskets made.

Question 2

The scores of five students on a math quiz are: 2, 3, 5, 7, and 7. Which choice correctly lists the mean, median, mode, and range for these numbers?

Accepted Answer

Mean = 4.8, Median = 5, Mode = 7, Range = 5

Answer

Mean = 5, Median = 5, Mode = 7, Range = 5

Answer

Mean = 4.8, Median = 7, Mode = 5, Range = 5

Answer

Mean = 4.8, Median = 5, Mode = 7, Range = 4

Question 3

Sam plotted the number of hours his class studied for a test (on the x‑axis) and the scores they got (on the y‑axis). The points on the graph show that as study time increases, the scores also tend to increase. Which sentence uses the word “correlation” correctly?

Accepted Answer

There is a positive correlation between study time and test scores.

Answer

There is a negative correlation between study time and test scores.

Answer

There is no correlation between study time and test scores.

Answer

The correlation shows that studying more causes higher scores.

Try three questions

The scores of five students on a math quiz are: 2, 3, 5, 7, and 7. Which choice correctly lists the mean, median, mode, and range for these numbers?

Sam plotted the number of hours his class studied for a test (on the x‑axis) and the scores they got (on the y‑axis). The points on the graph show that as study time increases, the scores also tend to increase. Which sentence uses the word “correlation” correctly?

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