Answer:
D) n=25
Step-by-step explanation:
Find the difference between the two prices:
617.40 - 420 = 197.40
Now divide the difference by the wholesale price:
197.40 / 420 = 0.47 = 47% markup.
Answer:
$66
Step-by-step explanation:
25% of 80 = 20
80 - 20 = 60
10% of 60 = 6
60 + 6 = 66
Answer:
28
Step-by-step explanation:
You multiply 7 and 8, and then divide it by two.
The population standard deviation of the data set is 1.414.
<h3>What is standard deviation?</h3>
Standard deviation is used to determine how the values in a group differs from the mean of the values in the group. It is a measure of variation.
<h3>How is standard deviation calculated?</h3>
- Determine the mean of the observation
- Determine the difference between each value and the mean and then square the result
- Determine the mean of the sum of the squared differences and then find the square root of the mean:
Mean = (8 + 9 + 10 + 11 + 12) / 5 = 10
Sum of squared differences: (8 - 10)² + (9 - 10)² + (10 - 10)² + (11 - 10)² + (12 - 10)² = 10
√10/5 = 1.414
To learn more about standard deviation, please check: brainly.com/question/26201837
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