5/27/22 - Algebra I Regents Review Flashcard

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is a measure of statistical dispersion, calculated as the difference between the third quartile (Q3) and the first quartile (Q1). It represents the range of the middle 50% of the data.

Tags

CCSS.6.SP.B.5C

Front

Which correlation coefficient indicates the strongest linear relationship between the variables?

Back

The correlation coefficient ranges from -1 to 1. A coefficient of -0.84 indicates a strong negative linear relationship between the variables.

Tags

CCSS.HSS.ID.B.5

Front

What does the expression (2⁸)² simplify to?

Back

(2⁸)² simplifies to 2¹⁶ using the power of a power property, which states that (a^m)^n = a^(m*n).

Tags

CCSS.8.EE.A.1

Front

What is the minimum value in a data set?

Back

The minimum value is the smallest number in a data set. For example, in the set {58, 60, 64, 66}, the minimum value is 58.

Tags

CCSS.6.SP.B.5A

Front

Define correlation coefficient.

Back

The correlation coefficient is a statistical measure that describes the strength and direction of a relationship between two variables.

Tags

CCSS.HSS.ID.C.8

Front

What is the formula for calculating the interquartile range (IQR)?

Back

IQR = Q3 - Q1, where Q3 is the third quartile and Q1 is the first quartile.

Tags

CCSS.6.SP.B.5C

Front

Explain what a negative correlation coefficient indicates.

Back

A negative correlation coefficient indicates that as one variable increases, the other variable tends to decrease.

Tags

CCSS.HSS.ID.B.5

Front

What is the significance of a correlation coefficient of 0?

Back

A correlation coefficient of 0 indicates no linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

Front

How do you find the first quartile (Q1) in a data set?

Back

To find Q1, arrange the data in ascending order and find the median of the lower half of the data.

Tags

CCSS.6.SP.B.5C

Front

What is the power of a power property in exponents?

Back

The power of a power property states that (a^m)^n = a^(m*n).

Tags

CCSS.8.EE.A.1