There is a proportional relationship between the cost of the movie subscription and the number of months a person has had the se
rvice. For 12 months the cost is $95.88. The point (6, 47.94) is on the line.
Label the x-axis and y-axis appropriately.
Write an equation that represents the proportional relationship between months and cost. Use the variable “m” for months and “c” for cost.
What does the “6” mean in the point (6, 47.94) in terms of the situation?
What does the “47.94” mean in the point (6, 47.94) in terms of the situation?
Label the x-axis and y-axis appropriately.
Write an equation that represents the proportional relationship between months and cost. Use the variable “m” for months and “c” for cost.
What does the “6” mean in the point (6, 47.94) in terms of the situation?
What does the “47.94” mean in the point (6, 47.94) in terms of the situation?
2 answers:
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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.