# QNT 275 Week 2 Quiz

PLDZ-5409**Description**

QNT 275 Week 2 Quiz

https://zh.scribd.com/document/343514565/Uop-Tutorial

**QNT 275 Week 2 Quiz**

- 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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