Question

HEELLPP!
The ages of students in a school are normally distributed with a mean of 15 years and a standard deviation of 2 years. Approximately what percent of the students are between 14 and 18 years old?

Answer 1

24.17%

62.47%

30.85%

93.32%

Answer 2

@amistre64

Answer 3

since it says approx, we can prolly utilize the empirical rule

Answer 4

then again, 14 aint 1 sd from 15 so that bites

Answer 5

it looks like you might have to table it, or ti83 it

Answer 6

i got no good way to narrow the choices ... except that 90 one is most likely not it