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The manufacturing is making balls the Diameter for each is 22 centimeter , if they want...

The manufacturing is making balls the Diameter for each is 22 centimeter , if they want to increase the diameter , what should they fix
1- mean
2-mode
3-median
4-standard deviation
5-range
math   Statistics-And-Probability   
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Answer #1

Answer:

4-Standard deviation

Explanation:

If the manufacturer wants to increase the diameter of the balls, then mean will shift from 22 cm to number greater than 22 cm. We know that the long run process of measuring diameter of manufacturing of balls follows normal distribution. Mean, mode, and median are same for the normal distribution. So, all these values will change in case of increment of diameter. But the variation pattern should be fix, that is standard deviation should be fix. The range is not an appropriate measure in this case as the maximum and minimum observations would be change. Standard deviation is not based only on maximum and minimum value of the data.

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