A statistical study on the distribution of a sample of "N" people infected...
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A statistical study on the distribution of a sample of "N" people infected with covid-19 in France by age group on January 20, 2022 revealed the following statistical table:
| Age group Xi | rfi |
| [0 ; 16[ | 0,01 |
| [16 ; 46[ | 0,12 |
| [46 ; 66[ | 0,22 |
| [66 ; 76[ | 0,25 |
| [76 ; 86[ | 0,21 |
| [86 ; 100[ | 0,19 |
The Mean age equals =
**** (Round a float value to 3 decimal places)
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