Review STAT205

What is the MODE of a data set?

• The middle value

• The average

• The number that occurs most frequently

• The difference between the max and min values

Tags

CCSS.6.SP.B.5C

What is the MEDIAN of a data set?

• The middle value

• The average

• The number that occurs most frequently

• The difference between the max and min values

Tags

CCSS.6.SP.B.5C

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

• 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)

Which measure of central tendency best represents this data?

• Mean

• Mode

• Median

• Range

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

Which class has the lower median?

• 1st period

• 2nd period

• They have the same median

Tags

CCSS.HSS.ID.A.3

What percent of the data is between 25 and 30 on the number line?

• 25%

• 50%

• 75%

• 100%

Tags

CCSS.HSF.IF.B.4

What does the standard deviation tell us about the data set?

• How spread out the numbers are

• How much each number in the data set decreases by

• How much each number in the data set increases by

Which of the following indicates a statistical association in which higher scores on one variable are associated with higher scores on the other variable?

• Negative correlation 

• Positive correlation   

• No correlation

• Correlation coefficient

Tags

CCSS.HSS.ID.C.9

If the two variables are not related, a correlation coefficient near ------ will be obtained.

• 0.00 

• 0.01 

• 0.05   

• 1.00

Tags

CCSS.HSS.ID.C.8

What is the purpose of z-scores?

• to describe where you are in relation to the mean

• to describe the shape of the distribution

• to find the mean of the distribution

• to find the standard deviation of the distribution