Statistician 7500
A statistician monitored the variance of monthly wages and found its value to be 640,000. Determine the standard deviation of salaries if there is a one-off increase:
a) about CZK 1,800,
b) about 5%.
a) about CZK 1,800,
b) about 5%.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- statistics
- standard deviation
- variance
- algebra
- expression of a variable from the formula
- arithmetic
- square root
- square (second power, quadratic)
- basic functions
- percentages
- reason
Units of physical quantities:
Grade of the word problem:
We encourage you to watch this tutorial video on this math problem: video1
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