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Outline the tally and frequency distribution.

1) A telephone company surveyed 12 households to find out how numerous telephones there were per household. Whole frequency distribution table below utilizing the following survey results-

2, 5, 4, 3, 4, 3, 1, 3, 3, 2, 3, 4

Number of telephones (x)

Tally

Frequency (f)

1

 

 

2

 

 

3

 

 

4

 

 

5

 

 

1) Which result takes place most frequently?

2) A local convenience store owner records how many customers enter the store over a 25-day period. The results are as follows:

20, 21, 23, 21, 26, 24, 20, 24, 25, 22, 22, 23, 21, 24, 21, 26, 24, 22, 21, 23, 25, 22, 21, 24, 21

Finish the following frequency distribution

Number of customers (x)

Tally

Frequency (f)

20

 

 

21

 

 

22

 

 

23

 

 

24

 

 

25

 

 

26

 

 

Total

 

 

a) Are these discrete or else continuous variables?

b) Which result takes place most frequently?

c) describe what conclusions can you draw from the tables? describe.

3) Fifty (50) operate members of a construction company were surveyed to find out what their weekly salary was to the nearest dollar. The results are as follows-

514, 476, 497, 511, 484, 513, 471, 470, 441, 466, 443, 481, 502, 528, 459, 548, 521, 517, 463, 478, 473, 514, 542, 519, 522, 523, 546, 487, 486, 473, 527, 470, 440, 564, 499, 523, 484, 463, 461, 437, 555, 525, 461, 539, 466, 470, 486, 490, 543, 519

a) Set-up a frequency distribution table as indicated below utilizing the wrap around method for the classes (the upper limit of one class becomes the lower limit of the next class).

b) Select the appropriate

Weekly salary (x)

Tally

Frequency (f)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total

 

50

c) Which class interval takes place most frequently?

d) describe what conclusions can you draw from the tables? describe.

HINT- It is you best interest to display your calculations so that I can trace calculation errors if necessary

Construct histogram for the above frequency distribution table

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921217

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