A classic counting problem is to determine the number of different ways that the letters of millennium can be arranged. Find tha
1 answer:
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Answer:
Step-by-step explanation:
<h3> The complete exercise is: "In order to solve this exercise, you need to follow the steps shown below:
<em>Step 1:</em> Divide the numerator 9 of the fraction by the denominator 25. Then:
<em>Step 2: </em>To calculate the percent of Polly's co-workers that prefer tea over coffee, you must multiply the quotient obtained before (this is ) by 100.
Therefore, you get the following result:
Then, you can conclude that 36% of Polly's co-workers prefer tea over coffee.
Answer:
Step-by-step explanation:
Let x be the number of adults and y be the number of campers.
There are rooms for 450 people, so
x+y≤450.
Each adult costs $7, then x adults cost $7x.
Each camper costs $4, then y campers cost $4y.
There is a maximum budget of $1,150, so
7x+4y≤1,150
Hence, you get the system of two inequalities:
Answer:
The 90% confidence interval for the support of Sanders by millenials is between 53% and 57%.
Step-by-step explanation:
In this question we have to calculate a confidence interval (90% CI) on the proportion of millenials that had a favorable opinion on Sanders.
The sample size is n=1,754.
The p-hat, taken from the poll, is
The estimated standard deviation is equal to:
For a 90% CI, the z-value is z=1.645.
Then, the confidence interval is