Question

Determine the difference between the mean and standard deviation of: 33, 44, 43, 56, 55, and 30.​

Answer 1

mean = ( 33+44+43+56+55+30) / 6

= 261/6

= 43.5

`variance = \frac{33 { }^(2) + {44}^(2) + {43}^(2) + {56}^(2) + {55}^(2) + {30}^(2) }{6} - {43.5}^(2)`

variance = 96.92

standard deviation = √96.92

= 9.84

difference between mean and standard deviation

= 43.5 - 9.84

= 33.66