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Brilliant_brown [7]
3 years ago
6

The ages of the 32 recruits in police academy are normally distributed with a mean of 27 with a standard deviation of 2. What pe

rcent of the recruits are between ages 23 and 27?
Mathematics
1 answer:
Natalka [10]3 years ago
8 0
Z scores are   (age - mean) / std dev

= 23 - 27 / 2  = -2  and  27-27 / 2  = 0 

Using the standard normal tables we find the required percentage is 47.73%

                
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