Characteristics of Data Distributions

Characteristics of Data Distributions

Assessment

Interactive Video

Mathematics, Education

9th - 12th Grade

Hard

Created by

Amelia Wright

FREE Resource

The video tutorial explains the conditions for using a normal model by examining one-variable data distributions. It covers different shapes of data distributions, such as uniform, skewed, and multi-peaked, and emphasizes the importance of visual displays like dot plots and histograms. The tutorial provides examples of data sets that should not be modeled with a normal curve, such as household income and student wages, and highlights the need to check for single-peaked, symmetric distributions without outliers. The lesson concludes with a brief mention of the empirical rule and its application to normal distributions.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common mistake students make when using the normal model?

Assuming all data sets are multi-peaked

Assuming all data sets are single peaked and symmetric

Assuming all data sets are uniform

Assuming all data sets are skewed

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a shape that a data distribution can take?

Circular

Multi-peaked

Uniform

Right skewed

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a characteristic of a skewed distribution?

It is uniform

It is symmetric

It is multi-peaked

It has a long tail on one side

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the best way to determine if a data set is single peaked and symmetric?

By calculating the mean

By listing all the numbers

By checking the median

By examining a visual display like a dot plot

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a dot plot used for?

To calculate the mean

To list all data points

To find the median

To display the distribution of data

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why should the distribution of household income in a town not be modeled with a normal curve?

It is uniform

It is multi-peaked

It is skewed

It is symmetric

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What characteristic of student wages makes them unsuitable for a normal model?

They are too uniform

They are multi-peaked

They are left skewed

They are right skewed

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