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1. |
The mean is the _______ of a set of numbers. |
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A. |
highest number |
B. |
middle number |
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C. |
most frequent |
D. |
arithmetic average |
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Hint |
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2. |
The heights in inches of 10 senior boys are 64, 65, 66, 68, 71, 72, 73, 73, 73, and 74. Find the mean of the heights. |
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A. |
69.9 in. |
B. |
70.0 in. |
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C. |
69.7 in. |
D. |
69.8 in. |
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Hint |
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3. |
A sample should be ______. |
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A. |
less than ten in the general population |
B. |
half the size of the population |
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C. |
not representative of the general population |
D. |
representative of the general population |
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Hint |
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4. |
Find the range of the data set 145, 612, 120, 349, 515, 212, 590. |
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A. |
492 |
B. |
512 |
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C. |
445 |
D. |
470 |
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Hint |
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5. |
Find the mean, median, and mode of $32, $37, $20, $26, $42, $39, $26, $34, respectively. |
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A. |
$34; $33; $26 |
B. |
$32; $32; $26 |
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C. |
$32; $33; $26 |
D. |
$34; $33; $26 |
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Hint |
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