Chi^2 Expected Counts

The table shows the stated distribution of colors for a bag of Starburst candies.

In a bag of 250 candies, how many would we expect to be pink? Do not round your answer.

Mathematical Equivalence

ON

Tags

CCSS.7.SP.C.6

Mathematical Equivalence

ON

A wildlife biologist sets a field trap to study three different types of mice. The researcher expects to catch an equal proportion of each type of mouse. If 75 mice a captured, who many of each mouse should the researcher expect to capture? Do not round your answer.

Mathematical Equivalence

ON

Tags

CCSS.7.SP.C.6

The following abbreviated Punnett square shows the phenotypes presented by crossing two unknown parents.

What proportion of the offspring should express both dominant genes?

• 44%

• 56%

• 25%

• 94%

• 83.5

• 85.3

• 41.7

• 57

• 18.6

• 28.1

• 17.3

• 19.3

A particularly tough teacher creates the following table to compare the grades between his three US History classes. If he assumes the grade distribution is the same between his three classes, what is the expected count for kids that are passing in period 2?

• 29.1

• 16.0

• 19.3

• 18.7

Tags

CCSS.HSS.MD.A.2

A particularly tough teacher creates the following table to compare the grades between his three US History classes. If he assumes the grade distribution is the same between his three classes, what is the expected count for kids that are failing in period 2?

• 12.7

• 19.3

• 32

• 14.1

Tags

CCSS.HSS.MD.A.2