It is B. the differences are added together
we have that
Part c)
the probability is equal to
P=0.14+0.27+0.58
<h2>P=0.99</h2>
because is the sum of
x=1, x=2 and x=3
Part D
the probability is
P=0.01+0.14+0.27
<h2>P=0.42</h2>
because is less than or equal 2
Answer:Some equations may not have solutions and some may have one or more than one is because of the variables or how they are written
Step-by-step explanation:not 100% sure this is the correct answer,I tried my best.
Answer: stratified
Step-by-step explanation:
In stratified sampling, you divide the population into subgroups, or strata, with similar characteristics, like here we have divided the population into subgroups that depend on their political alignment. This is used when you can expect that the results have a noticeable variation between the different subgroups. Usually, you want to have the same number of population for eac subgroup, but sometimes it is hard for different reasons (not enough people in one subgroup, for example)
In cluster sampling we also use subgroups, but the subgroup itself is the unit of the sampling, while in this case, we are randomly selecting individuals of the given subgroups.
So this would be a "stratified sampling".
The answer to your question is B.Opposite sides are parallel.