Answer:
13.15
Step-by-step explanation:
Answer:
8x10^-12
Step-by-step explanation:
Hope that helps.
Mean is
and a standard deviation is
, then the variable
.
Use substitution
.
This substitution gives you that
.
a. For X=130,
and
(the decimal value is taken from the Standard Normal Distribution Table).
b. For X=90,
and for X=110,
. Then
(the decimal value is taken from the Standard Normal Distribution Table).
Answer:
1 3/4
Step-by-step explanation:
5 1/4 / 3 is equal to 1 and 3/4
12:15 does not belong, since that is a ratio of 4:5, whilst the others are all 3:4.