We can rewrite the asked question like this:

wherein X_1 and X_2 are random variable with the same given normal distribution. Then mean of

is zero and the variance
can be computed like this:

So, the random variable

follows a normal distribution
with means 0 and standard deviation 9.6.
The median of the law N(0,9.6) is 0.
So the expected difference of the score is 0.
Answer:
ecd
Step-by-step explanation:
3/10 inches x inches
---------------- = -------------
7/8 miles 1 miles
using cross products
3/10 * 1 = 7/8 * x
multiply by 8/7
3/10 * 8/7 = 7/8 *8/7*x
24/70 = x
divide by 2
12/35
12/35 inches per 1 mile
Answer:
Length: 10
Surface Area: 20
Step-by-step explanation:
Length:
2*12=24
240/24=10
Surface Area:
2*10=20