Unit 5 & 6 Test- Statistics & Probability

Determine the distribution of the data in the stem and leaf plot.

• Skewed Right

• Skewed Left

• Symmetric

• Can not be determined

The table shows the lowest

temperatures, in degrees Fahrenheit, 

on each of five days for a city.

        Determine the mean temperature

        for the five days.

Determine the distribution of the test scores from the histogram below.

• Skewed Right

• Skewed Left

• Symmetric

• Can not be determined

 The number of pieces of mail the Smith and Gomez families receive is tracked over a

    period of two weeks. Based on the data in the box plots, which statement is true?

• The range of the data for the Gomez family is less than the range of the data for the Smith family.

• The data for the Smith family is more symmetrical than the data for the Gomez family.

• The median for the Gomez family is greater than the maximum value for the Smith family.

• The amount of mail received for the Gomez family is more predictable than the amount of mail received for the Smith family.

 Two friends measure the distance a

race car travels over ten trials. Use the

dot plots to answer the question. Which

of the conclusions is best supported

by the dot plots?

• The range for both data sets is equal.

• The median of Jamal's race car data is 6.5 feet.

• The mode for Kendall’s data is greater than the mode for Jamal’s data.

•  The median feet traveled for Kendall's 

             race car is less than the median feet 

             traveled for Jamal's race car.

Population or Sample?

Mrs. Johnson wants to do a statistical analysis on students' final examination scores by gathering             

      all of the scores for all of her math classes for the past year.

• Population

• Sample

Population or Sample?

One hundred of the light bulbs produced in a factory in one day are chosen to be

       examined for flaws.

• Population

• Sample

The elementary school cafeteria is thinking about changing the menu from pizza to hamburgers.

Which of the following best describes a random sample of people to ask whether this is a

good idea?

• All of the students in Mrs. Johnson's class are surveyed.

• Twenty randomly selected fifth graders are surveyed.

• Fifty randomly selected teachers and staff are surveyed.

• One hundred students and teachers’ names are drawn from a hat and they are surveyed.

 T-Mobile randomly selected 100 of its customers and asked how many hours do they spend on social media apps. Of those surveyed, 45 customers spend more than 10 hours 

on social media apps per week. Based on the data, if T-Mobile has 2,500 customers, about how 

many spend more than 10 hours on social media apps per week?

• 400 Customers

• 800 Customers

• 1,125 Customers

• 1,400 Customers

What is the probability of landing on purple?