A study on the distribution of the numbers of people infected with covid-19 in F...
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A study on the distribution of the numbers of people infected with covid-19 in Franceby age group as of January 20, 2022 revealed the following the statistical table:
Xi | crFi+ | crFi- |
| [0 ; 15[ | .... | 0,925 |
| [15 ; 45[ | .... | 0,85 |
| [45 ; 65[ | .... | 0,5 |
| [65 ; 75[ | 0,85 | .... |
| [75 ; 85[ | 0,925 | .... |
| [85 ; 100[ | .... | .... |
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Calculate the Standard Deviation =
Sd = .......... ?
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**** the result rounded to two decimal places ****