Answer:
Step-by-step explanation:
Let be the shaded area and
be the unshaded area, then we know that
(1).
and
(2).
We solve for in the first equation and get:
and put this into the second equation and get:
According to the tree diagram below what is the probability that someone buys a book that is paperback and fiction?
2 answers:
Answer:
The correct option is C) 0.2925.
Step-by-step explanation:
Consider the provided tree diagram.
In order to find the probability multiply the probabilities of each step, you have to reach the leaf.
So, in order to reach the "paperback and fiction" leaf, you have to take the "Buys paperback" branch i.e. probability 0.65, and then the "Buys fiction" branch i.e. probability 0.45.
Therefore, the probability for "paperback and fiction" is
Hence, the correct option is C) 0.2925.
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Answer:
257
Step-by-step explanation:
The divisors of 72 which are composite number are
4,6,8,9,12,18,36,72 (composite numbers are those numbers which are formed by the multiplication of two whole numbers}
So the total number of divisors which are composite are = 8
So total number of subset
In question it is said that also include empty set in count
So total number of subset =256+1=257