Find the surface area of the following prism.
1 answer:
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Answer:
55.2% probability that the customer is charged incorrectly on at least 3 items.
Step-by-step explanation:
For each item, there are only two possible outcomes. Either it is charged incorrectly, or it is not. The probability of an item being charged incorrectly is independent from other items. 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.
A survey finds customers are charged incorrectly for an item 20% of the time.
This means that
Find the probability that the customer is charged incorrectly on at least 3 items.
Either the customer is charged incorrectly on 2 or less items, or he is charged on at least 3. The sum of the probabilities of these events is 1.
So
We want
So
In which
55.2% probability that the customer is charged incorrectly on at least 3 items.
Answer:
The length is 12 inches.
Step-by-step explanation:
The volume of a rectangular prism is given by:
V=LBH
It was given that; the rectangular prism has a volume of 600 cubic inches.
The height of the prism is 5 inches and the width is 10 inches.
We want to find the length of the rectangular prism.
We substitute V=600, H=5,and W=10 into the formula:
600=5×10×L
600=20L