8.SP.4 Quiz

What is a two-way frequency chart used for?

• To display data in a single category

• To compare frequencies between two categories

• To calculate averages

• To show trends over time

Tags

CCSS.8.SP.A.4

In a two-way frequency chart, what does each cell represent?

• A single data point

• The total frequency of all data

• The frequency of a specific combination of categories

• The average of the data

Tags

CCSS.8.SP.A.4

What is relative frequency?

• The total number of occurrences

• The frequency of a category divided by the total number of data points

• The difference between the highest and lowest frequencies

• The sum of all frequencies

Tags

CCSS.8.SP.A.4

How do you calculate the relative frequency of a category?

• Divide the frequency of the category by the total number of data points

• Subtract the frequency from the total

• Multiply the frequency by 100

• Add the frequency to the total

Tags

CCSS.8.SP.A.4

In a survey, 30 people like apples and 20 like bananas. What is the relative frequency of people who like bananas?

• 0.4

• 0.6

• 0.5

• 0.3

Answer explanation

Relative frequency is a ratio (part/whole).

Look for the total number of things and place that in the denominator, then place the part you care about in the numerator.

Divide and multiply by 100 to turn it into a percentage.

Tags

CCSS.7.SP.A.2

If a two-way frequency chart shows 8 students like soccer and 12 like basketball, what is the relative frequency of students who like soccer?

• 0.4

• 0.6

• 0.5

• 0.3

Answer explanation

Relative frequency is a ratio (part/whole).

Look for the total number of things and place that in the denominator, then place the part you care about in the numerator.

Divide and multiply by 100 to turn it into a percentage.

Tags

CCSS.8.SP.A.4

The cell labeled with 84 is an example of a:

• Marginal Frequency

• Joint Frequency

• Relative Frequency

• Conditional Relative Frequency

Answer explanation

Think Mmargin of your paper.

Tags

CCSS.8.SP.A.4

What does frequency mean?

• gathered information

• Never happens

• How often something occurs

Tags

CCSS.6.SP.B.5A

What percentage of SUV's are driven by women?

• 56.25%

• 75%

• 83.25%

• 86.5%

Answer explanation

"Of SUVs" represents the total of the total we care about the women...

Relative frequency is a ratio (part/whole).

Look for the total number of things and place that in the denominator, then place the part you care about in the numerator.

Divide and multiply by 100 to turn it into a percentage.

Tags

CCSS.8.SP.A.4

What percentage of males drive sports cars?

• 35%

• 16.25%

• 65%

• 25%

Answer explanation

"Of Males" indicates the total, then of those we care about the ones that drive sports cars...

Relative frequency is a ratio (part/whole).

Look for the total number of things and place that in the denominator, then place the part you care about in the numerator.

Divide and multiply by 100 to turn it into a percentage.

Tags

CCSS.8.SP.A.4