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Click a number below to answer a question. (Drag the # behind the trash can so you know which have been used!)

Statistic

ANSWER

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ANSWER ANSWER

A sample of 120 employees of a company is selected, and the average age is found to be 37 years old.

Statistic or Parameter?

Parameter

ANSWER

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ANSWER

A researcher interested in the ventilation of downtown office buildings determines that 42.7% all downtown offices have ventilation problems.

Statistic or Parameter?

StatisticANSWER

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Based on a sample of 500 patients with high cholesterol, it was found that 67% have heart disease.

Statistic or Parameter?

ANSWER

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Survey responses of “good, better, best”.

QUALITATIVE OR QUANTITATIVE

QUALITATIVEANSWER

QUALITATIVEANSWER

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Telephone numbers.

QUALITATIVE OR QUANTITATIVE

QUANTITATIVEANSWER

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Prices of DVDs.

QUALITATIVE OR QUANTITATIVE

QUALITATIVEANSWER

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Final grades of A, B, C, D, and F in a statistics class.

QUALITATIVE OR QUANTITATIVE

StratifiedANSWER

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Identify the SAMPLING TECHNIQUE used.

You want to determine the percentage of students who have part-time jobs. You randomly survey equal numbers of freshmen, sophomores, juniors, and seniors.

ConvenienceANSWER

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Identify the SAMPLING TECHNIQUE used.

An ABC news reporter polls people as they pass him on the street.

ANSWER

SystematicANSWER

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Identify the SAMPLING TECHNIQUE used.

A sobriety checkpoint at which every fifth driver was stopped and interviewed.

Simple Random Sample

ANSWER

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Identify the SAMPLING TECHNIQUE used.

A Gallup Organization conducts a poll of US voters. Computers are used to randomly generate telephone numbers that are automatically called.

9! = 362,880ANSWER

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I am designing a multiple choice test, but want to make multiple versions to be sure that there no cheating. If the test has 9 questions, in how many different ways can I order the questions if every test consists of the same 9 questions?

5,040ANSWER

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Your garage code consists of four numbers. How many different codes are possible ifyou can’t repeat numbers

3,024ANSWER

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The Board of Trustee’s at Harper College has nine elected members. From those nine membershow many different ways can a president, vice-president, secretary and treasurer be selected?

0.841ANSWER

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Hewlett Packard sends you a carton of 12 computer modems, 3 of which are defective. If you randomly select 5 of the modems, what is the probability that you choose at least one that is defective

1,260

ANSWER

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The Chicago Tribune frequently has a game called JUMBLE, in which the reader has to unscramble the letters to form words. Saturday’s Tribune had the following letters, how many distinct ways can you rearrange the letters?

prvreoe

ANSWER

1

7,059,052

=1.42 x 10^-7

ANSWER

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In the Connecticut Lottery, a player wins first prize by selecting 6 numbers from 1 to 44 in any order. How many different tickets can be formed and what is the probability of winning?

0.045ANSWER

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A carton contains 12 eggs, 3 of which are cracked. If we randomly select 5 of the eggs for decorating for Easter, what is the probability of all the cracked eggs are selected

10,000ANSWER

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ADT home security systems have a code consisting of four digits 0 through 9 that must be entered in the correct sequence. If digits can be repeated in the code how many different possible codes are there?

2,970ANSWER

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How many different ways can a foursome of 2 men and 2 women be selected out of a group of 10 men golfers and 12 women golfers?

0.81ANSWER

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A postal carrier distributes 1st class letters,

advertisements and magazines. For a certain day, she distributed the following

Delivered to:

1st Class

Ads Magazine

Total

Home 325 406 203 934

Business 732 1021 97 1850

Total 1057 1427 300 2784

Find the probability that a letter is delivered is an ad or is delivered to a business.

0.432ANSWER

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A manufacturing company has 3 factories: X, Y and Z. The daily output of each is shown below.

Smoking Habit

Not a HS Graduate

HS Graduate

College Graduate

Total

Smoke 6 14 19 39

Does not smoke

18 7 25 50

Total 24 21 44 89

Find the probability that an employee smokes, given that he or she graduated from college.

0.079ANSWER

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Find the probability that an employee is a high school graduate and does not smoke.

A manufacturing company has 3 factories: X, Y and Z. The daily output of each is shown below.

Smoking Habit

Not a HS Graduate

HS Graduate

College Graduate

Total

Smoke 6 14 19 39

Does not smoke

18 7 25 50

Total 24 21 44 89

0.75ANSWER

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A manufacturing company has 3 factories: X, Y and Z. The daily output of each is shown below.

Find the probability that an employee smokes did not graduate from HS or does not smoke.

Smoking Habit

Not a HS Graduate

HS Graduate

College Graduate

Total

Smoke 6 14 19 39

Does not smoke

18 7 25 50

Total 24 21 44 89

0.969ANSWER

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A coin is tossed five times, find the probability of getting at least one tail.

0.992ANSWER

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In a certain high-risk group, the chances of a person having suffered a heart attack are 55%. If six people are chosen at random, find the probability that at least one will have had a heart attack.

0.097ANSWER

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A recent poll says that 46% of all Americans suffer great stress at least once a week. If three people are selected at random, find the probability that all three will say that they suffer great stress at least once a week.

58.04ANSWER

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For the data below, calculate the mean.

Height Frequency

50-52 5

53-55 8

56-58 12

59-61 13

62-64 11

0.84ANSWER

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For the data below, calculate the variance.

Height Frequency

50-52 5

53-55 8

56-58 12

59-61 13

62-64 11

16.3

What is the mean?

2, 7, 9, 15, 25, 27, 29

ANSWER

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