Here is a sample of 6 observations. 0.9 7.2 8.6 6.6 1.7 4.2 Calculate the mean of this sample. Give your answer to 2 significant figures
Question
Here is a sample of 6 observations. 0.9 7.2 8.6 6.6 1.7 4.2 Calculate the mean of this sample. Give your answer to 2 significant figures
Solution
To calculate the mean of a sample, you need to add up all the numbers and then divide by the count of the numbers.
Here are the steps:
- Add up all the numbers: 0.9 + 7.2 + 8.6 + 6.6 + 1.7 + 4.2 = 29.2
- Count the numbers. In this case, there are 6 numbers.
- Divide the sum by the count: 29.2 ÷ 6 = 4.866666666666667
Rounding to 2 significant figures, the mean of this sample is 4.87.
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