Answer:
The mean of X is 122.5 and the standard deviation is 7.9.
Step-by-step explanation:
For each adult, there are only two possible outcomes. Either they believe that the overall state of moral values is poor, or they do not believe this. The probability of an adult believing this is independent of other adults. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:

The standard deviation of the binomial distribution is:

In this problem, we have that:

So


The mean of X is 122.5 and the standard deviation is 7.9.
Answer:
Eden has 40 basketball cards
Step-by-step explanation:
Just do 5*8 which equals to 40, you can go back and check your answer by finding the 1/5 of 40 and you would receive 8
I don't have the measurements, but the lqbel would be a rectangle so you need to find its length and height (the length being the circumference of the can and the height being the height of the can)
Answer:
c) three
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Step-by-step:
The tetrahedron is a triangular pyramid with equilateral triangles on each face.