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SKU 04118

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- Correct answerquestion
**1**

The number of classes in a frequency distribution depends on the size of the data set. In general, the:

number of classes should be equal to the number of values in the data set divided by 5

larger the data set, the larger the number of classes

larger the data set, the smaller the number of classes

smaller the data set, the larger the number of classes

- Correct answerquestion
**2**

Which of the following pairs of events is mutually exclusive?

Female and male

Female and republican

Male and republican

Male and no opinion

Female and democrat

- Ccrrect answerquestion
**3**

Which of the following is not an example of a discrete random variable?

The number of persons allergic to penicillin

The time spent by a physician with a patient

The number of days it rains in a month in New York

The number of stocks a person owns

- Ccrrect answerquestion
**4**

We obtain the percentage of a category by:

dividing the frequency of that category by 100

dividing the sum of all frequencies by the frequency of that category

multiplying the frequency of that category by 100

multiplying the relative frequency of that category by 100

- Ccrrect answerquestion
**5**

You toss a coin nine times and observe 3 heads and 6 tails. This event is a:

compound event

multinomial sample point

multiple outcome

simple event

- Ccrrect answerquestion
**6**

You randomly select two households and observe whether or not they own a telephone answering machine. Which of the following is a simple event?

At most one of them owns a telephone answering machine.

Neither of the two owns a telephone answering machine.

At least one of them owns a telephone answering machine.

Exactly one of them owns a telephone answering machine.

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