Topic 11-12 USA Review

Which measure of center is most appropriate for the given data?

• mean

• interquartile range

• median

• range

Select the conclusions that you can draw about the data sets.

• The range of the Soccer Player data set is greater than the range of

  the Basketball Player data set.

• They surveyed more Soccer Players than Basketball Players.

• The mean number of active minutes outdoors for Soccer Players is greater than the mean number of minutes for the Basketball Players.

• The median number of active minutes outdoors for Soccer Players is greater than the median number of minutes for the Basketball Players.

Margo gathers data on curfew times from a random sample of students at her middle school. Of the 250 students surveyed, 75 have a curfew of 8 p.m., 125 have a curfew of 9 p.m., 40 have a curfew of 10 p.m., and 10 have a curfew of 11 p.m. Out of the 2,000 students in Margo’s middle school, how many do you predict have a curfew of 9 p.m.?

Miguel is designing a game which will use a spinner. He is comparing the probabilities of two spinners. Select all the true statements.

• The sample space for both spinners is S = {1, 2, 3, 4}

• The sample space for Spinner A is S = {1, 2, 3, 4}.

• 
  The sample space for Spinner B is S = {1, 2, 3, 4}.

• 
  The sample space for both spinners is S = {1, 1, 1, 2, 2, 2, 3, 4}

• The sample space for Spinner A is S = {1, 1, 1, 2, 2, 2, 3, 4}.

Twenty-five volunteers will wear a blue, yellow, red, or green apron during an upcoming food drive. There are 7 green aprons, 13 red and 3 yellow. In the table, match the description of each probability.

A restaurant has a jar with 1 green, 4 red, 7 purple, and 3 blue marbles. Each customer randomly chooses a marble. If they choose the green marble, they win a free appetizer. What is the probability a customer does NOT win an appetizer? Select all that apply

The furniture store has one more month of sales, which changes the range to 43. Which could represent the number of sofas sold in June?

• 424

• 220

• 621

• 256

• 272

Joyce kept track of the inches of snowfall in his town during a 15-day period.

{1, 0, 0, 3, 5, 0, 0, 0, 2, 2, 1, 7, 2, 2, 3}

Which box plot represents this data set?

• 
• 
• 
• 

Which quality is NOT associated with the histogram?

• gaps

• symmetric

• skewed

• clusters

Alia and her husband have a list of six names for their new baby boy. Each name is equally likely to be picked. They make the table to assign each name a number, then they roll a die 150 times. The results are in the table. Select all the true statements.

• The theoretical probability of each number is about 17%.

• The experimental probability of Karl is about 19%

• The experimental probability of each name is greater than the theoretical probability

• The experimental probability of each name is close to the expected probability

• The experimental probability of Sal is the lowest at 15%