Sean and Kyle have 26 dollars between them. If Sean has 8 more dollars than Kyle, how much money does Kyle have, in dollars?
2 answers:
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Answer:
a) 0.3826
b) 0.9894
Step-by-step explanation:
We are given the following information:
We treat students accepted at university as a success.
P(students accepted at university) = 70% = 0.70
Then the number of students accepted at university follows a binomial distribution, where
where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 10
a) P( 8 or more will be accepted)
b) P(4 or more will be accepted)
Taking the square root of both sides gives two possible cases,
or
Recall that
If and
, we have
so in the equations above, we can write
Then in the first case,
(where is any integer)
and in the second,
Then the solutions that fall in the interval are