Statistics Review

Which of the following is an example of a statistical question?

• What color shirt are you wearing?
• How many dogs do you have?
• What are the favorite ice cream flavors of CMS 6th graders?
• Is it a nice day outside?

Tags

CCSS.6.SP.A.1

Identify the POPULATION in the following question: What are the ages of the students at Clarke Middle School?

• Students
• Age
• Clarke Middle School

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

What does it mean for a graph of data to be SKEWED LEFT?

• Most of the data is grouped to the left side
• Most of the data is grouped to the right side
• Most of the data is in the middle
  (draw a line down the middle and both sides look the same)

Tags

CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Carrie is comparing the growth of plants under natural and artificial light sources.

Part A Use the measures of center from the box plots to make an inference about the data.

• On average group Q has a greater growth of plants under natural and artificial light sources.

• The sets have the same variability related to the growth of plants under natural and artificial light sources.

Tags

CCSS.7.SP.B.4

33, 25, 42, 25, 31, 37, 46, 29, 38
What is the third quartile of the data?

• 37
• 38
• 40
• 46

Tags

CCSS.6.SP.B.5C

What percentage of the data is between 40 and 90?

• 25 %
• 50%
• 75%
• 100%

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.B.4

CCSS.6.SP.B.5

The mean life of a tire is 30,000 km. The standard deviation is 2000 km.

Then, 68% of all tires will have a life between ___________ km and __________ km.

•  28,000 km and 32,000 km.
• 24,000 km and 34,000 km.
• 26,000 km and 34,000 km.
• 27,000 km and 31,000 km.

Tags

CCSS.HSS.ID.A.4

What kind of correlation?

• Positive

• Negative

• No Correlation

The linear regression equation is y = 61.93x - 1.79.  Identify the y-intercept of the equation.

• Y-Int = 61.93
• Y-Int = -1.79
• Y-Int = (0, -1.79)
• Y-Int = (0, 61.93)

Tags

CCSS.HSF.LE.B.5

The linear regression equation is y = 61.93x - 1.79.  According to the model, the slope can be interpreted as:

• After 0 hours of driving, they went 61.93 miles.
• They drove at a speed of 61.93 miles per hour.
• They drove 61.93 miles total.
• They drove 61.93 hours total.

Tags

CCSS.HSF.LE.B.5