Standard deviation
Find the standard deviation for the following grouped data:
| Age (years) | Number of Persons |
|---|---|
| 0–10 | 15 |
| 10–20 | 15 |
| 20–30 | 23 |
| 30–40 | 22 |
| 40–50 | 25 |
| 50–60 | 10 |
| 60–70 | 5 |
| 70–80 | 10 |
Final Answer:
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Dr Math
Check also with our stddev calculator - input is given as frequency table:
https://www.hackmath.net/en/calculator/standard-deviation?input=5+15+25+35+45+55+65+75%0D%0Af%3A15+15+23+22+25+10+5+10
x is Mid Interval Value and f is frequency
https://www.hackmath.net/en/calculator/standard-deviation?input=5+15+25+35+45+55+65+75%0D%0Af%3A15+15+23+22+25+10+5+10
x is Mid Interval Value and f is frequency
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