Answer :
Final answer:
The sample mean of the temperature readings (101, 101, 97, 101) is computed by adding all the values and dividing by the sample size, four in this case. The sum is 400, and when divided by 4, the mean temperature is 100.
Explanation:
The subject at hand deals with the concept of calculating the sample mean, a central theme in statistics. The sample mean is calculated as the sum of observations divided by the size of the sample. In the case of the four temperature readings given in the question, i.e., 101, 101, 97, 101, here's how you determine the sample mean:
Add up the readings: 101 + 101 + 97 + 101 = 400
Then divide by the number of readings, which is 4. So, 400 / 4 = 100.
Therefore, the sample mean of the temperatures is 100.
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The sample mean is 100. (A)
The sample mean is the average of a set of numbers. To compute the sample mean, you add up all the numbers and then divide by the total number of numbers.
In this case, the sample mean would be (101 + 101 + 97 + 101)/4 = 400/4 = 100. Therefore, the correct answer is a. 100.
Here is a step-by-step explanation of how to compute the sample mean:
1. Add up all the numbers: 101 + 101 + 97 + 101 = 400
2. Divide the sum by the total number of numbers: 400/4 = 100
3. The sample mean is 100.
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