In 1999, total revenue of a company from music sales and licensing was $14.8 billion. It was forecasted that this number would
1 answer:
Answer:
62. 84%
Step-by-step explanation:
total revenue of a company from music sales and licensing in 1999 = $14.8 billion
Foretasted total revenue of a company from music sales and licensing in 2014 = $5.5 billion
decrease in revenue of a company from music sales and licensing in 2014 from 1999 = $14.8 billion - $5.5 billion = 9.3 billion
Therefore percentage decrease in music revenue =( difference in revenue from 1999 to 2014/ revenue in 1999 ) * 100
percent decrease in music revenue is 62. 84%.
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Answer:
We estimate to have 8.33 times the number 6 in 50 trials.
Step-by-step explanation:
Let us consider a success to get a 6. In this case, note that the probability of having a 6 in one spin is 1/6. We can consider the number of 6's in 50 spins to be a binomial random variable. Then, let X to be the number of trials we get a 6 out of 50 trials. Then, we have the following model.
We will estimate the number of times that she spins a 6 as the expected value of this random variable.
Recall that if we have X as a binomial random variable of n trials with a probability of success of p, then it's expected value is np.
Then , in this case, with n=50 and p=1/6 we expect to have number of times of having a 6, which is 8.33.