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Statistics :Multiple choice questions

1. Each raw datum is the monthly rent in dollars for a one-bedroom apartment in 20 different complexes.
200 185 325 320 180 225 210 235 225 310
290 250 285 190 235 245 205 230 260 290
Suppose you decide to group the given raw data into a frequency table with eight classes. What would your class width be?

$18
$19
$24
$25

2. If the lower limit of your first class were $175, what would be the upper limit of the seventh class, given that you chose eight classes?
$300
$307
$342
$349

3. Each raw datum represents the ages, in years rounded, at which 25 randomly selected smokers began smoking.
26 26 25 17 16 16 14 17 21 16 16 18 17
15 15 19 16 17 22 15 19 17 16 21 16
Select five classes for the data above, and use 14 as the lower class limit for the first class.
What are the boundaries for the fourth class?
16.5 years to 19.5 years
19.5 years to 22.5 years
22.5 years to 25.5 years
25.5 years to 28.5 years

4. Each raw datum represents the ages, in years rounded, at which 25 randomly selected smokers began smoking.
26 26 25 17 16 16 14 17 21 16 16 18 17
15 15 19 16 17 22 15 19 17 16 21 16
Select five classes for the data above, and use 14 as the lower class limit for the first class.
Between what ages did the greatest number of those selected begin to smoke?

5.
14 years of age to 16 years of age
17 years of age to 19 years of age
20 years of age to 22 years of age
23 years of age to 25 years of age

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Solution contains answers and explanations of Multiple choice questions.

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