How do you find the perimeter of a trapezoid?
2 answers:
Perimeter is the distance around a figure. We can find the perimeter of a trapezoid by adding the lengths of each of the sides.
In the image provided, I provided a practice problem for you. To find the perimeter of the trapezoid shown, simply add the lengths of all the sides.
In the second image, I provided an answer key and steps to show you how I got the answer.
-TheBlueFox-
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Answer:
11.44% probability that exactly 12 members of the sample received a pneumococcal vaccination.
Step-by-step explanation:
For each adult, there are only two possible outcomes. Either they received a pneumococcal vaccination, or they did not. The probability of an adult receiving a pneumococcal vaccination is independent of other adults. 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.
70% of U.S. adults aged 65 and over have ever received a pneumococcal vaccination.
This means that
20 adults
This means that
Determine the probability that exactly 12 members of the sample received a pneumococcal vaccination.
This is P(X = 12).
11.44% probability that exactly 12 members of the sample received a pneumococcal vaccination.