Suppose that a student needs to buy 6 books for her history course. the number of books that she will be able to find used is a
binomial random variable x with n = 6 and p = 0.30. in other words, the probability that she will find any given book used is 0.30, and is independent from one book to the next. what is the probability that she will find more than 2 used books?0.6760.2560.3240.744
1 answer:
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Answer:
First Option
Step-by-step explanation:
First, we will find the equation for the total cost of the tickets.
Given x = Cost of 1 adult ticket
y = Cost of 1 Child ticket
Total Cost of tickets at $40:
2x + 4y = 40
To find which graph represent the cost of the tickets,
we can substitute x = 0 to find y and vice-versa.
If x = 0 ,
So when x = 0 , y = 10 which gives the coordinates (0,10).
Now if y = 0,
So when y = 0 , x = 20 which gives the coordinates (20,0)
This shows that this particular line passes through these 2 points and therefore the answer is the first option.