Question 12

Select the best choice of the following choices to classify the correlation that you would expect to find between the amount of time spent at a store and the amount of money spent at the store.

a)Strong positive correlation

b)Strong negative correlation

c)Weak positive correlation

d)Weak negative correlation

e)No correlation

Question 14

The linear regression equation for the line of best fit for a set of data points is y = 3.25x + 17.34. If the x-value of one of the data points is 6.5, which of the following numbers is the best predictor for the y-value of the data point?

a)7.5

b)38

c)27

d)4

Question 15

The linear regression equation for the line of best fit for a set of data points is y = 3.25x + 17.34. If one of the data points is (7.3, 38.5), which of the following numbers is the best predictor for the residual for this data point?

a)14.8

b)-6.3

c)5.0

d)-2.6

Question 16

Select the number of ways that the letters A, B, C, D, E, F, and G can be arranged (using all of them) if E and F must be adjacent.

a)5040

b)720

c)1440

d)120

Question 17

In how many ways can the letters of the word INFINITE be arranged to begin with a vowel?

a)420

b)1260

c)529 200

d)1680

Question 18

The value of the expression 300!

297! is __________.

a)not possible

b)3!

c)89 700

d)26 730 600

Question 19

From a group of 8 firefighters, 6 police officers, and 5 paramedics, in how many ways can a committee of 5 be selected if it must contain 2 firefighters, 1 police officer, and 2 paramedics?

a)1680

b)44

c)6720

d)82

Question 20

Using just the face cards and aces (4 jacks, 4 queens, 4 kings, and 4 aces), in how many ways can you be dealt a 6-card hand with 1 queen, 2 jacks, and 3 aces?

a)256

b)364

c)96

d)1258

Question 21

Among 180 students in a room, 70 study mathematics, 110 study science, and 100 study computer programming. Also, 30 students study mathematics and science, 40 students study mathematics and computer programming, and 50 students study science and computer programming. We know that 10 students study all three subjects. How many of these students study none of the three subjects?

a)10

b)16

c)20

d)35

Question 22

Determine how many 3-digit numbers can be formed from the 6 numbers {0, 1, 2, 3, 4, 5} if the 3-digit number can't start with a zero, each number is used only once, and the 3-digit number is even.

a)52

b)70

c)20

d)88

Question 23

State the number in position 4 of row 32 of Pascal's triangle.

a)31 465

b)169 911

c)201 376

d)35 960

Question 24

How many paths are there to spell the word BELLEVILLE if you start from the top and move down one step diagonally?

a)2048

b)512

c)4096

d)1024

Question 26

Jared goes to the mall and asks many people questions about their shopping experience there. This is primary data.

True

False

Question 27

The numbers of jellybeans in 7 bags of the same brand of jellybeans are 40, 45, 50, 50, 55, 65, and 88. The interquartile range of this data is 48.

True

False

Question 29

The percentage change from 20 to 20.4 is 16%.

True

False

Question 30

A certain row in Pascal's triangle ends with the numbers 8436, 703, 38, 1. The last 4 numbers in the next row are 9139, 741, 39, 1.

True

False