One Variable Statistics Review

Which driver had the fastest typical time?

• Driver A

• Driver B

• Driver C

• They were the same.

Tags

CCSS.HSS.ID.A.2

Which driver's race times were the most variable?

• Driver A

• Drive B

• Driver C

• They were the same.

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Mrs. Jones counted her mail over the past week.

The number of letters she got each day were: 2, 3, 5, 5, 5, 15

Which value appears to be an outlier?

• 2

• 3

• 5

• 15

Tags

CCSS.HSS.ID.A.3

Mrs. Jones counted her mail over the past week.

The number of letters she got each day were: 2, 3, 5, 5, 5, 15

If the 15 were removed what would happen to the mean and standard deviation?

• The mean and standard deviation would both increase.

• The mean and standard deviation would both decrease.

• The mean would increase, but the standard deviation would decrease.

• The mean would decrease but the standard deviation would stay the same.

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

What is the IQR (Interquartile Range) of this box plot?

• 14

• 18

• 12

• 25

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.1

Select the distribution shape when the mean is less than the median?

• Symmetric

• Skewed left

• Bell-Shaped

• Skewed right.

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Select the distribution shape when the mean and median are not the same?

• Uniform

• Symmetric

• Bell-Shaped

• Skewed

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

The bus company tracks the data on the time it takes for a bus to travel from the Downtown Station to the City Mall.

The standard deviation of the data is 3 minutes.

Which is the best interpretation of the standard deviation?

• The mean time for a bus to travel on this trip is 3 minutes.

• The time for a bus to travel this trip is, on average, within 3 minutes of the mean time for the trip.

• The time for a bus to travel this trip is usually 3 minutes shorter than the mean time of the trip.

• The time for a bus to travel this trip is usually 3 minutes longer than the mean time of the trip.

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

The histogram represents the distribution of the number of seconds it took for each of 50 students to find the answer to a trivia question using the internet. Which interval contains the median?

• 0-5

• 5-10

• 10-15

• 15-20

Tags

CCSS.HSS.ID.A.1

Which of these is the best estimate of the standard deviation of points in a card game as seen in the dot plot?

• 5 points

• 20 points

• 50 points

• 500 points

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.1