Review for Test 6 - Two Variable Statistics

What percentage of males drive sports cars?

• 35%
• 16.25%
• 65%
• 25%

According to the table, what is the relative frequency of students ages 10 - 13 who eat breakfast?

• About 33%
• About 50%
• About 40%
• About 44%

Tags

CCSS.8.SP.A.4

What percentage of the days that it rained, did they forecast no rain?

• About 20%
• About 18%
• About 14%
• About 12%

Tags

CCSS.8.SP.A.4

What percentage of the students were boys?

• 20%
• 25%
• 40%
• 50%

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

• y = 1.5x + 12

• y = 12x + 1.5

• y = 0.67x - 8

• y = -8x + 0.67

Tags

CCSS.8.EE.C.8C

Find the equation of the line of best fit for the given data

• y = 163.41x+1.49

• y =- 163.41x+ 4.19

• y =- 4.19x+163.41

• y = 4.19x -163.41

Write the linear regression equation for the following data points. Round to the nearest tenth.

• $y=-0.27x+3.93$

• $y=3.93x+-0.27$

• $y=1.25x+3.75$

• $y=0.27x+3.94$

Tags

CCSS.8.EE.C.8C

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

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

• y = 1.5x + 12

• y = 12x + 1.5

• y = 0.67x - 8

• y = -8x + 0.67

Tags

CCSS.8.EE.C.8C

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

Tags

CCSS.HSF-LE.A.1B