Formula for percentile rank with a data value:

percentile rank = (values at or below) / n * 100 (round to nearest whole number)

Standard deviation indicates data spread.

How spread out the numbers are.

Difference between high and low numbers

Correlation coefficient:

A number between -1 and +1 that measures the strength and direction of the linear relationship between two variables.

Coefficient of Determination (r²) is

the percent increased by the regression model on predictions made.

Not true about correlation number (r):

Changing a variable's units from feet to inches affects correlation.

the difference between observed response and predicted values.

Standard deviation of residuals (s) is...

the typical distance of all residuals from the line of regression.

Stats Benchmark Vocab Review Flashcards

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66 questions

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1.

FLASHCARD QUESTION

Front

Class Types (Math, SS, ELA, Science)

Back

Categorical

2.

FLASHCARD QUESTION

Front

Age:

Back

Quantitative

3.

FLASHCARD QUESTION

Front

Distance from School

Back

Quantitative

4.

FLASHCARD QUESTION

Front

Female / Male

Back

Categorical

5.

FLASHCARD QUESTION

Front

Hair Color

Back

Categorical

6.

FLASHCARD QUESTION

Front

Weight:

Back

Quantitative

7.

FLASHCARD QUESTION

Front

Time:

Back

Quantitative

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