Use technology to compute r, the correlation coefficient.The following are the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters): 
A. 0
B. -.2105
C. .1955
D. .2563
Answer: C
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Convert the number in the sentence to standard notation.The total sales of Acme Manufacturing Company for the years 1996-2000 was $63.40 billion.
A. $63,400,000,000 B. $63,400,000 C. $63,400,000,000,000 D. $634,000,000
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
Solve the problem.A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls. If Joe's phone bill was $56 under this promotional deal, how many minutes of phone calls did he make? Round to the nearest integer, if necessary.
A. 8 min B. 2 min C. 820 min D. 1420 min
The baseball player in center field is playing approximately 310 feet from the television camera that is behind home plate. A batter hits a fly ball that goes to the wall 400 feet from the camera (see figure). The camera turns 10° to follow the play. Approximately how far does the center fielder have to run to make the catch?
?
?
A. 102.9 ft B. 114.9 ft C. 108.9 ft D. 113.9 ft E. 103.9 ft