Statistics: Discrete Data and Percentage Polygon
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Questions and Answers

How do you create a pivot table in Excel?

  • Click on the Data tab, select Pivot Table, and then click OK
  • Click on any cell within the data, choose the Insert tab, click on the Pivot Table icon, and then click on Pivot Table in the drop-down menu (correct)
  • Go to the Tools menu, choose Pivot Table, and then click on Insert
  • Select the data, choose the Pivot Table tab, and then click on Create

What does a stem and leaf display in statistics do?

  • It creates a scatter plot of the data
  • It organizes data into columns and rows
  • It calculates the mean and standard deviation of the data
  • It provides a histogram-like view of the distribution (correct)

What is the purpose of using the 10's digit as the stem in a stem and leaf display?

  • It creates a histogram
  • It helps create a scatter plot
  • It calculates the median of the data
  • It groups similar data values together (correct)

What should be done first before creating a stem and leaf display?

<p>Sort the data from lowest to highest (D)</p> Signup and view all the answers

What is the purpose of scatter plots?

<p>To show the relationship between two paired data points (B)</p> Signup and view all the answers

In a stem and leaf display, what do the stems represent?

<p>The tens place of the data values (B)</p> Signup and view all the answers

What is the purpose of a line chart?

<p>To represent time series data (A)</p> Signup and view all the answers

What is the role of the dependent variable in a scatter plot?

<p>To be influenced by changes in the independent variable (C)</p> Signup and view all the answers

When creating a scatter plot in Excel, where is the independent variable usually placed?

<p>On the horizontal axis (A)</p> Signup and view all the answers

What do stem and leaf displays provide a more detailed view of?

<p>The distribution of data values (B)</p> Signup and view all the answers

What is the purpose of a Pareto chart?

<p>To show the frequency of the categories that cause quality control problems (A)</p> Signup and view all the answers

What is the characteristic feature of a Pareto chart?

<p>It shows quality problem categories in decreasing order (D)</p> Signup and view all the answers

In the context of Pareto charts, what is an ogive?

<p>A line graph that plots the cumulative relative frequency distribution (A)</p> Signup and view all the answers

When is it appropriate to use a Pareto chart?

<p>When showing the frequency of the categories that cause quality control problems (B)</p> Signup and view all the answers

Which type of chart uses a line graph to plot the cumulative relative frequency distribution?

<p>Pareto chart (A)</p> Signup and view all the answers

What distinguishes a Pareto chart from a bar chart?

<p>The focus on showing frequency of categories causing quality control problems (D)</p> Signup and view all the answers

What does an ogive represent in a Pareto chart?

<p>The cumulative relative frequency distribution (A)</p> Signup and view all the answers

What distinguishes a Pareto chart from a pie chart?

<p>The focus on showing frequency of categories causing quality control problems (A)</p> Signup and view all the answers

When creating a Pareto chart, what does arranging categories from most frequent to least frequent help with?

<p>Showing frequency of categories causing quality control problems (A)</p> Signup and view all the answers

What makes Pareto charts more useful than pie charts for certain data?

<p>Showing frequency of categories causing quality control problems (A)</p> Signup and view all the answers

What does a Pareto chart compare?

<p>Frequency of categories causing quality control problems (A)</p> Signup and view all the answers

In a Pareto chart, what does each category represent?

<p>The number of occurrences of various categories (B)</p> Signup and view all the answers

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