CRM 4.1 Part A Review

Students were asked to put together a list of statistical questions for a end of year project.

Select all the questions that will generate numerical data with variation.

• What is your highest score in Fortnite?

• How tall is Dr. Walker?

• What is breakfast for today?

• How many books have you read?

• How many points did the team score in their last game?

Jaylen and Kybrin were working on coming up with statistical questions that would create numerical data.  They came up with the following questions:

Jaylen: “How many times do students get their hair cut each year?”
Kybrin: “What is your favorite animal?”

 
Whose question represents a statistical question that would generate
numerical data and why?

• Jaylen’s question is a statistical question because the question yields a variety of responses.

• Kybrin’s question is a statistical question because the question yields a variety of responses.

• Jaylen’s question is a statistical question because the question yields one correct answer.

• Kybrin’s question is a statistical question because the question yields one correct answer.

Sofia plays the violin in the middle school band.  The table shows his practice time for one week.

What is the mean of the data?

• 22

• 23

• 29

• 201

Sofia plays the violin in the middle school band.  The table shows his practice time for one week.

What is the median of the data?

Sofia plays the violin in the middle school band.  The table shows his practice time for one week.

What is the range of the data?

• 12

• 13

• 41

• 53

The data set below represents the number of cookies Ellie sells each day for the last 3 days.
 
    { 19, 10, 22, 10, 14 }
 
    What does the mean tell us about Ellie’s cookie sales?

• The mean tells us that the amount of cookies Ellie sells varies by 12 cookies.

• The mean tells us that on most days, Ellie sells 25 cookies.

• The mean tells us that on average, Ellie sells 25 cookies a day.

• The mean tells us that Ellie sells a total 75 cookies.

Kiyan’s restaurant offers different items for lunch on its menu. The price for some of the items are shown.

{$4.95, $6.50, $6.50, $7.95, $5.95, $5.50}

What does the mode tell us about the price of some of the items from the menu?

• The average price of the items on the menu is $6.50.

• There are more items on the menu that cost $5.50 than any other price.

• There are more items on the menu that cost $6.50 than any other price.

• The average price of the items on the menu is $5.50.

A box plot representing the finishing time of 15 runners during the Disney 5K is shown.  What percentage of runners finished between 20.2 and 23 minutes?

• 25%

• 50%

• 75%

• 100%

The box plot shows the data collected for the amount of time it takes each student to get to school. What is the median amount?

The box plot shows the data collected for the amount of time it takes each student to get to school. What are the highest and lowest values?

• 0 and 35

• 5 and 35

• 10 and 20

• 0 and 20