Algebra 1 - Unit 6 Review

Josh and Richard each earn tips at their part-time job. This table shows their earnings from tips for five days. What is the difference in the median of Josh’s earnings from tips and the median of Richard’s earnings from tips?

• 5
• 7
• 10
• 12

Josh and Richard each earn tips at their part-time job. This table shows their earnings from tips for five days. What is the difference in the IQR of Josh’s earnings from tips and the median of Richard’s earnings from tips?

• 1
• 2
• 3
• 4

Peter went bowling, Monday to Friday, two weeks in a row.  He only bowled one game each time he went.  He kept track of his scores below.

Week 1:  70, 70, 70, 73, 75

Week 2:  72, 64, 73, 73, 75

What is the BEST explanation of why Peter’s Week 2 mean score was lower than his Week 1 mean score?

• Peter received the same score three times in Week 1.
• Peter had one very low score in Week 2.
• Peter did not beat his high score from Week 1 to Week 2.
• Peter had one very high score in Week 1.

Melissa would like to determine whether there is a relationship between study times and mean test scores. She recorded the mean study time per test and the mean test score for students in three different classes. This is the data for Class 1.

What type of relationship does this data support?

• Positive correlation
• Negative correlation
• No correlation

Melissa would like to determine whether there is a relationship between study times and mean test scores. She recorded the mean study time per test and the mean test score for students in three different classes. This is the data for Class 1.

Is there causation?

• Yes
• No

Tags

CCSS.HSS.ID.C.9

Josh and Richard each earn tips at their part-time job. This table shows their earnings from tips for five days. Who had the greatest median earnings from tips?

• Josh
• Richard

Tags

CCSS.6.SP.B.5C

The line of best fit for a data set has a correlation coefficient of r = -0.94.  What does this indicate about the line of best fit?

• There is a strong negative correlation.
• The slope of the line is -0.94.
• 94% of the data are on the line of best fit.
• There is a strong positive correlation.

A fast food restaurant wants to determine if the season of the year affects the choice of soft drink size purchased. They surveyed 278 customers and the table below shows their results.In which season did the most customers prefer jumbo drinks?

• Spring
• Summer
• Fall
• Winter

Tags

CCSS.8.SP.A.4

A fast food restaurant wants to determine if the season of the year affects the choice of soft drink size purchased. They surveyed 278 customers and the table below shows their results.

What size drink was most preferred in the summer?

• Small
• Medium
• Large
• Jumbo

Tags

CCSS.8.SP.A.4

What type of a relationship is suggested by the scatter plot (positive/negative, weak/strong)?

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