Unit 3: Two Variable Statistics Review

Unit 3: Two Variable Statistics Review

Assessment

Flashcard

Mathematics

9th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is Two Variable Statistics?

Back

Two Variable Statistics involves analyzing the relationship between two different variables, often using methods like scatter plots, correlation coefficients, and regression analysis.

2.

FLASHCARD QUESTION

Front

What does the term 'slope' refer to in a linear equation?

Back

The slope (m) in the equation y=mx+b represents the rate of change of y with respect to x, indicating how steep the line is.

3.

FLASHCARD QUESTION

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables, with points representing individual data points.

4.

FLASHCARD QUESTION

Front

What is the purpose of a correlation coefficient?

Back

The correlation coefficient measures the strength and direction of a linear relationship between two variables, ranging from -1 to 1.

5.

FLASHCARD QUESTION

Front

What does 'y-intercept' mean in the equation y=mx+b?

Back

The y-intercept (b) is the value of y when x is 0, representing where the line crosses the y-axis.

6.

FLASHCARD QUESTION

Front

How do you interpret a positive correlation?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

7.

FLASHCARD QUESTION

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities (e.g., colors, names), while quantitative data represents numerical values (e.g., height, weight).

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