Fractions

7×⅙=1⅙

• True
• False

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Divide these fractions

• 8 / 2
• 54 / 4
• 9 / 2
• 9 / 24

Tags

CCSS.6.NS.A.1

Divide these fractions

• 8 / 9
• 2 / 1
• 6 / 6
• .333 / .75

Tags

CCSS.6.NS.A.1

Multiply

• 5 / 9
• 6 / 20
• 5 / 20
• 23 / 20

Tags

CCSS.5.NF.B.6

Divide

• 1 / 1
• 1 / 0
• 66 / 55
• 11 / 121

Tags

CCSS.6.NS.A.1

The scores of a standardized test are designed to measure math anxiety are normally distributed with a mean of 100 and a standard deviation of 10 for a population of first year college students. Which of the following observations would you suspect is an outlier?

• 90
• 100
• 150 
• 90, 100, and 150 are outliers

The grades on a statistics exam were raised five points on each students paper. This adjustment in the students grades result in
A. increasing the class MEAN by five points
B. increasing the class MEDIAN by five points
C. increasing the STANDARD DEVIATION by five points

• A only 
• B only 
• 3 only 
• 1, 2, and 3 

The incomes in a certain large population of college teachers have a normal distribution with mean $60,000 and standard deviation $5000. Four teachers are selected at random from this population to serve on a salary review committee. What is the probability that their average salary exceeds $65,000?

• 0.0228
• 0.1587
• 0.8413
• 0.9772