Last Unit EXAM

A customer will borrow $12,000 to buy a car. Which loan option would allow the customer to pay the least amount of interest?

• A 4-year loan with a 5.2% annual simple interest rate

• A 5-year loan with a 4.2% annual simple interest rate

• A 6-year loan with a 4.7% annual simple interest rate.

• A 3-year loan with an 8.4% annual simple interest rate

A student's parents invested $5,000 in a college savings account that pays 4.85% annual simple interest. No additional deposits or withdrawals will be made.

Which amount is closest to the interest earned on the account at the end of 15 years?

• $5174.11

• $10,174.11

• $3,637.50

• $8,637.50

Ben deposits $1,750 into each of the two savings accounts.

-Account 1 earns 2.75% annual simple interest

-Account 2 earns 2.75% interest compounded annually.

Ben does not make any additional deposits or withdrawals. Which amount is closest to the difference between the interest Ben earned in Account 1 and the interest Ben earned in Account 2 at the end of 2 years?

• $96.25

• $1.32

• $97.58

• $193.82

Choose ALL graphs that have a non-linear trend.

YOU WILL HAVE MORE THAN ONE ANSWER CHOICE SELECTED.

• 1

• 2

• 3

• 4

• 5

What type of association does this scatter plot represent?

• positive linear association
• negative linear association
• no association
• nonlinear association

What type of association does this graph have?

• positive
• negative
• none
• all of the above

The scatter plot shows the number of absences in a week for classes of different sizes.  Trevor concluded that there is a positive correlation.  Which statement best describes why Trevor's conclusion was incorrect.

• The largest class does not have the most absences.
• The smallest class does not have the least number of absences.
• The data show no relationship between class size and number of absences.
• The data show a negative relationship between class size and number of absences.

Phil collected data from several of his friends about the number of hours they spent sleeping and the number of hours they spent playing video games on Saturday. He recorded the data in the scatterplot.

Based on the scatterplot, what is the best prediction of the number of hours one of Phil's friends spends sleeping when the friend spends 1 hour playing video games?

• 9 hours

• 11 hours

• 7 hours

• 8 hours

The area of a piece of land is 4,951,000 square meters. How is the number of square meters written in scientific notation?

The list shows the weight in pounds of 6 puppies at birth.

3, 1.6, 2.8, 2.5, 1.7, 2.8

What is the mean absolute deviation of these numbers?

• 0.9

• 2.4

• 0.5

• 14.4