Accel6 Unit 8 Lesson 12 Practice Problems

Which statement is true about the MAD of the Australian data set?

• It is significantly less than the MAD of the U.S. data set.

• It is exactly equal to the MAD of the U.S. data set.

• It is approximately equal to the MAD of the U.S. data set.

• It is significantly greater than the MAD of the U.S. data set.

The dot plots show the amounts of time that ten South African students and ten Australian students took to get to school. Without calculating, which data set has the smaller mean?

• South African students

• Australian students

• Both have the same mean

• Cannot be determined

Which data set has the smaller MAD?

• South Africa

• Australia

A smaller mean in this context tells us:

• The data values are generally lower.

• The data values are more spread out.

• There are more outliers in the data.

• The data set is larger.

A smaller MAD tells us:

• There is less variability in the data

• There is more variability in the data

• The data is skewed

• The mean is higher

Two high school basketball teams have identical records of 15 wins and 2 losses. Sunnyside High School's mean score is 50 points and its MAD is 4 points. Shadyside High School's mean score is 60 points and its MAD is 15 points. Which team did Lin most likely like, given that she prefers teams with nearly the same score for every game?

• Sunnyside High School

• Shadyside High School

Which of the following expressions correctly represents the perimeter of a rectangle with side lengths a and b?

• a + a + b + b

• 2a + 2b

• Both a + a + b + b and 2a + 2b

• Neither

Which of the following sets contains three numbers between -2 and -8 (not including -2 and -8)?

• -3, -5, -7

• -2, -4, -6

• -8, -5, -3

• -1, 0, 1

Which of the following is a correct inequality statement using the symbols < and > for numbers plotted on a number line?

• 3 < 5

• 5 > 7

• 2 > 4

• 6 < 4

Would you expect each adult elephant seal to weigh exactly 5,500 pounds if you weighed 5 elephant seals?

• Yes, each seal would weigh exactly 5,500 pounds.

• No, the weight of each seal may vary.