The data set shows the ages of the members of a book club. What is the shape of the distribution of this data set?
1 answer:
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Answer:
The cost per adult is $16.
Step-by-step explanation:
Given that:
Total number of children = 20+22 = 42 children
Total number of adults = 2 + 5 = 7 adults
Total cost for both groups = $490
Cost per child = $9.00
Cost of children ticket = 9.00*42 = $378
Cost of adult tickets = 490-378 = $112
This is the cost for 7 adult tickets.
Cost per ticket = = $16
Hence,
The cost per adult is $16.
Answer:
<h2>The mean is 26666.67 and the standard deviation is 372919430.33.</h2>Step-by-step explanation:
The mean means the average of the numbers.
The mean will be .
The differences of the earnings from the mean are 1666.67, 26997.33, 33997.33.
Squaring the numbers we get, 2777788.89, 728855827.13, 1155818447.12.
We need to find the mean of the above numbers to get the standard deviation.
Thus, the standard deviation is .