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The mode of the following distribution is 66 what would be the median wage 30 to 40 40 to 50 50 to 60 60-70 70 to 80 80 to 90 number of workers 8 16 22 28 test and 12?
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Calculating the Median Wage from a Frequency Distribution


Given Data:


  • 30 to 40: 8 workers

  • 40 to 50: 16 workers

  • 50 to 60: 22 workers

  • 60 to 70: 28 workers

  • 70 to 80: 12 workers

  • 80 to 90: ? (not given)



Step 1: Find the Total Number of Workers

To find the median wage, we need to first find the total number of workers in the given distribution. We can do this by adding up the number of workers in each category.

Total number of workers = 8 + 16 + 22 + 28 + 12 + ? (not given)

Step 2: Find the Median Class

The median class is the class interval that contains the median value. To find the median class, we need to first calculate the cumulative frequency of the distribution.

Cumulative frequency table:


  • 30 to 40: 8 workers

  • 40 to 50: 16 + 8 = 24 workers

  • 50 to 60: 22 + 24 = 46 workers

  • 60 to 70: 28 + 46 = 74 workers

  • 70 to 80: 12 + 74 = 86 workers

  • 80 to 90: ? (not given)



The median class is the class interval that contains the middle value, which is (total number of workers + 1) / 2 = (96 + 1) / 2 = 48.5. Therefore, the median class is the 50th worker, which falls in the 50 to 60 class interval.

Step 3: Calculate the Median Wage

To calculate the median wage, we need to use the following formula:

Median = Lm + ((n/2 - Fm) / fm) x i

Where:

  • Lm = lower class boundary of the median class (50 to 60)

  • n = total number of workers (96)

  • Fm = cumulative frequency of the class before the median class (24)

  • fm = frequency of the median class (22)

  • i = class width (10)



Plugging in the values, we get:

Median = 50 + ((48.5 - 24) / 22) x 10
Median = 50 + (24.5 / 22) x 10
Median = 50 + 11.14
Median = 61.14

Therefore, the median wage is 61.14.
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The mode of the following distribution is 66 what would be the median wage 30 to 40 40 to 50 50 to 60 60-70 70 to 80 80 to 90 number of workers 8 16 22 28 test and 12?
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