Answer:
2
Step-by-step explanation:
do you have a z table chart to look at?
find Z= 0 should show that z=0 = 0.500
and z=2.16 = 0.9846
subtract them
0.9846-0.500 = 0.4846 is the area
Lna^b = blna
let y = lne^e
so y = lne^e = e lne
lne = 1
y = e which is a constant (Euler's number) ~= 2.718
For Euler's number estimating methods request in a comment.
To get the decimal think of 3/8 as a division question -3 divided by 8
3/8=0.375
now times the decimal by 100
0.375 * 100=37.5
so the answer is going to be 37.5%