What is one of the purposes of centering our processes on 'Target' or 'Nominal'?

To ensure processes are aligned with desired outcomes.

How can statistics help in improving process capability?

By increasing the number of defects.

By ignoring assignable causes of variation.

By making processes less precise.

What is one of the benefits of using statistics in understanding processes?

To know the truth about the real world.

To avoid understanding the real world.

To increase the number of unknowns.

What is the purpose of descriptive statistics?

To describe the characteristics of a data set.

Why are descriptive statistics useful?

They allow you to make sense of the data.

They help in predicting future events.

They eliminate errors in data collection.

They help in creating new data sets.

What do descriptive statistics help with?

Making conclusions about the data to make rational decisions.

What calculations are included in descriptive statistics?

Calculating the average of the data, its spread, and the shape it produces.

Calculating future data trends.

Calculating the number of outliers.

Calculating the errors in data collection.

Which of the following is an example of a concern in descriptive statistics?

The weight of a product in a production line

The probability of an event occurring

The correlation between two variables

What is another example of a concern in descriptive statistics?

The time taken to process an application

The likelihood of a customer returning

The relationship between two datasets

The forecast of next quarter's revenue

What does descriptive statistics involve?

Describing, summarizing, and organizing data

Why are graphical displays used in descriptive statistics?

To enable clarity of communication

When analyzing a graphical display, what can you draw conclusions based on?

The characteristics of the graph

Which of the following questions might you ask when analyzing a graph?

What is the approximate middle, or center, of the graph?

What is the title of the graph?

What is the color of the graph?

How many labels does the graph have?

What question would help you understand the spread of data values on a graph?

How spread out are the data values on the graph?

What is the title of the graph?

What is the color of the graph?

How many labels does the graph have?

Which question helps in understanding the overall shape of the graph?

What is the overall shape of the graph?

What is the title of the graph?

What is the approximate middle, or center, of the graph?

How many labels does the graph have?

What is an outlier in a data set?

A data point that is significantly greater or smaller than other data points in a data set.

A data point that is equal to the average of the data set.

A data point that is always the smallest value in the data set.

A data point that is always the largest value in the data set.

Why is it useful to identify outliers when analyzing data?

They may affect the calculation of descriptive statistics.

They can be ignored in all calculations.

They help in identifying the mean of the data set.

They always indicate an error in data collection.

Can outliers occur in any given data set and in any distribution?

Yes, outliers can occur in any given data set and in any distribution.

No, outliers only occur in normally distributed data sets.

No, outliers only occur in skewed data sets.

No, outliers only occur in large data sets.

What might outliers indicate in a dataset?

Experimental error or incorrect recording of data

High accuracy in data collection

When should an outlier be excluded from analysis?

If it is due to measurement or human error

If it is within the expected range

What is an outlier in the context of descriptive statistics?

B. A data point that is far distant from the rest of the values

A. A data point that is very close to the mean

C. A data point that is the median of the dataset

D. A data point that is the mode of the dataset

What is the mean of a data set?

The total of all the values divided by the size of the data set

The middle value of the data set

The most frequently occurring value in the data set

The difference between the highest and lowest values in the data set

When does the mean work well?

When the distribution is symmetric and there are no outliers

When the distribution is skewed

When the data set is very small

What is the median in a data set?

The middle value where exactly half of the data values are above it and half are below it

The most frequently occurring value

Why is the median considered a useful statistic?

It is robust and can reduce the effect of outliers

It is always the highest value in the data set

When is the median often used?

When the data is nonsymmetrical

When the data set is very small

When the data set has no outliers

Statistics Quiz

9th Grade

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63 Qs

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Statistics Quiz

Quiz

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Mathematics

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9th Grade

•

Practice Problem

•

Hard

•

CCSS

6.SP.A.3, 6.SP.B.5D, 6.SP.B.5C

Standards-aligned

Kevin Heck

FREE Resource

63 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is statistics concerned with?

Describing, interpretation, and analyzing of data

Only collecting data

Only interpreting data

Only analyzing data

Tags

CCSS.6.SP.A.3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is statistics considered an essential element in any improvement process?

Because it is fun

Because it helps in describing, interpreting, and analyzing data

Because it is a mandatory subject

Because it is easy to learn

Tags

CCSS.6.SP.B.5B

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Into what categories is statistics often divided?

Descriptive and inferential

Analytical and graphical

Theoretical and practical

Simple and complex

Tags

CCSS.HSS.IC.B.3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What methods does statistics use to model and predict variation?

Graphical methods

Analytical methods

Descriptive methods

Inferential methods

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using graphical methods in statistics?

To make numbers visible for communication purposes

To collect data

To interpret data

To analyze data

Tags

CCSS.6.SP.A.3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we need statistics?

To find why a process behaves the way it does.

To guess the outcomes of random events.

To avoid using mathematical models.

To ignore variations in data.

Tags

CCSS.6.SP.A.3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a reason to use statistics?

To find why it produces defective goods or services.

To increase the number of defects.

To make processes less accurate.

To ignore the truth about the real world.

Tags

CCSS.6.SP.B.5B

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