Question

The mean of a normally distributed dataset is 12, and the standard deviation is 2.
what ? % of the data points lies between 8 and 16.

Answer 1

@Michele_Laino can u help

Answer 2

we have to compute these two quantities:
(16-12)/2=...?
(12-8)/2=...?

Answer 3

I do it on a bell curve and it is subtracted and added
the first one is 2

Answer 4

second one is 2

Answer 5

both of those quantities are equal to 2, so we have to use the table of the erf function, and find this probability: