Find the mean of the set of data. Round your answer to the nearest tenth.107, 49, 4, 64, 77, 20, 70, 81, 14
A. 45.4
B. 54.0
C. 60.8
D. 52.4
Answer: B
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Refer to the following normal curve, with mean ? and standard deviation ?.
The standard deviation ? =
A. 30 B. 15 C. 10 D. 60 E. none of these
The following chart gives the average monthly temperatures in Fahrenheit for two cities in Alaska. Use the chart to solve. Round to the nearest tenth of a degree.
What is the average temperature in Barrow during December, January, and February?
A. -11°F B. -7.5°F C. -14°F D. -18°F
Decompose the fraction into partial fractions.
?
What will be an ideal response?
Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.estimateexact
A. Estimate: $71; exact: $73.63 B. Estimate: $81; exact: $81.55 C. Estimate: $81; exact: $83.65 D. Estimate: $71; exact: $73.53