Answer:
-4
Step-by-step explanation:
i just did it..
Answer:
Step-by-step explanation:Solution :
Given variable = p
According to the problem given ,
Twice the variable p divided by the
product of 5 and q
= ( 2p )/ ( 5q )
= 2p/5q
This would be true because it shows that p equals either a or b and it also shows that p equals a which is true because it is one of the independent choices.
Answer:
0.3844 = 38.44% probability that two independently surveyed voters would both be Democrats
Step-by-step explanation:
For each voter, there are only two possible outcomes. Either the voter is a Democrat, or he is not. The probability of the voter being a Democrat is independent of other voters. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
62% of the voters are Democrats
This means that 
(a) What is the probability that two independently surveyed voters would both be Democrats?
This is P(X = 2) when n = 2. So


0.3844 = 38.44% probability that two independently surveyed voters would both be Democrats