Add.3 + (-14) + 8 + (-15) + 7 + (-17)
A. -16
B. -64
C. -28
D. -44
Answer: C
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Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.The normal monthly precipitation (in inches) for August is listed for 20 different U.S. cities. Find the mean monthly precipitation.
A. 2.80 in. B. 2.94 in. C. 3.09 in. D. 3.27 in.
Translate using numbers and symbols.the sum of nineteen and y
A. 19 - y B. y + 19 C. 19y D. y × 19
Multiply. Assume all variables represent nonnegative real numbers.
A. 7m10
B. 7m9
C. 7m11
D. 14m7
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400