Here are some summary statistics for the numbers of acres of soybeans and peanuts harvested per county in Alabama in 2009, for counties that planted those crops.
Crop
Mean harvest (thousands of acres)
Standard deviation (thousands of acres)
Soybeans
u = 12
o = 14
Peanuts
u = 10
O=8
In one southern county, there were 9 thousand acres of soybeans harvested and 3 thousand acres of peanuts harvested.
Relative to its crop, which plant had a better harvest?

boxplot e is the answer

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560