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Reading 7: Statistical Concepts and Market Returns - LOS b

Q11. Use the results from the following survey of 500 firms to answer the question.

 Number of Employees     Frequency

300 up to 400              40

400 up to 500              62

500 up to 600              78

600 up to 700              101

700 up to 800              131

800 up to 900                  88

The frequency of the third class is:

A)     78.

B)     180.

C)     156.

答案和详解如下:

Q11. Use the results from the following survey of 500 firms to answer the question.

 Number of Employees     Frequency

300 up to 400              40

400 up to 500              62

500 up to 600              78

600 up to 700              101

700 up to 800              131

800 up to 900                  88

The frequency of the third class is:

A)     78.

B)     180.

C)     156.

Correct answer is A)

The third class is 500 - 600 with a frequency of 78.

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answers

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d

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a

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d

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 thanks

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