Keystone Data Review

Keystone Data Review

Assessment

Flashcard

Mathematics

8th - 11th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a line of best fit?

Back

A line that best represents the data on a scatter plot, showing the trend of the data points.

2.

FLASHCARD QUESTION

Front

How do you calculate the expected value using a linear equation?

Back

Substitute the value of x into the equation y = mx + b to find the corresponding y value.

3.

FLASHCARD QUESTION

Front

What does the first quartile (Q1) represent in a data set?

Back

The first quartile is the median of the lower half of the data set, meaning 25% of the data points are below this value.

4.

FLASHCARD QUESTION

Front

If the first quartile of a data set is 7.5, how many players practiced for at least this amount?

Back

At least 9 out of 12 players practiced for at least 7.5 hours.

5.

FLASHCARD QUESTION

Front

What is the significance of median in a data set?

Back

The median is the middle value that separates the higher half from the lower half of the data set.

6.

FLASHCARD QUESTION

Front

How do you determine the number of students lifting less than a certain weight?

Back

Count the number of data points that fall below the specified weight.

7.

FLASHCARD QUESTION

Front

What is a scatter plot?

Back

A graph that uses dots to represent the values obtained for two different variables, showing the relationship between them.

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