Sampling of Populations

Mario compares random download times of movies from three different services using the table shown. Which service provides the fastest mean download speed?

• WhoKnew

• Amazing Prime

• Peach TV

Harry collects data from a random sample of seventh-graders. Out of 25 respondents, 10 ride the bus to school. Out of 150 seventh-graders who attend Harry's school, how many would be expected to ride the bus to school?

• 40 seventh-graders

• 50 seventh-graders

• 60 seventh-graders

• 90 seventh-graders

The drama teacher wants to determine where the drama club should go to celebrate their final performance. Which of the following is NOT a representative sample?

• Students who do not act.

• Every 4th student selected from an alphabetical roster of the club

• Students who appear in the first act

• Students with supporting roles

• Students whose names are randomly selected from a hat

Which of the following measures of center can be used to compare two data sets? Select all that apply/

• mean

• interquartile range

• median

• mean absolute deviation (MAD)

• range

What do the box plots tell you about the growth of a typical plant species?

• B typically grows taller than A since the range for B is greater.

• B typically grows taller than A since the IQR for B is greater.

• A grows taller than B since the median for A is greater.

• A typically grows taller than B since the mean for A is greater.

Tags

CCSS.7.SP.B.3

CCSS.7.SP.B.4

What do the box plots tell you about the variability of the data?

• B has greater variability because its range and IQR are greater than A.

• B has greater variability because its median & mean are greater than A.

• A has greater variability because its range & IQR are greater than B.

• A has greater variability because its median and mean are greater than B.

Tags

CCSS.7.SP.B.3

CCSS.7.SP.B.4

What inference can be made about the populations based on Paisley's data?

• young teachers drive trucks

• SUVs are driven by teachers with families

• most teachers drive sedans

• fewer teachers drive sedans than SUVs

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Which of the following measures CANNOT be made from a box plot?

• Interquartile Range

• Mean

• Median

• Range

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

Compare the variability of the data for each store.

• The range & IQR are greater at store B as compared to store A.

• There is less variability in prices of DVD players at store A.

• The range & IQR are greater at store A as compared to store B.

• There is more variability in prices of DVD players at store B.

Tags

CCSS.7.SP.B.3

CCSS.7.SP.B.4

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• Quartile