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Find the arithmetic mean of the numbers 12, 15, 18, 21, and 24.
Find the arithmetic mean of the numbers 12, 15, 18, 21, and 24.
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Practice Questions
1 question
Q1
Find the arithmetic mean of the numbers 12, 15, 18, 21, and 24.
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Mean = (12 + 15 + 18 + 21 + 24) / 5 = 90 / 5 = 18.
Questions & Step-by-step Solutions
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Q
Q: Find the arithmetic mean of the numbers 12, 15, 18, 21, and 24.
Solution:
Mean = (12 + 15 + 18 + 21 + 24) / 5 = 90 / 5 = 18.
Steps: 6
Show Steps
Step 1: Write down the numbers you want to find the mean of: 12, 15, 18, 21, and 24.
Step 2: Add all the numbers together: 12 + 15 + 18 + 21 + 24.
Step 3: Calculate the sum: 12 + 15 = 27, then 27 + 18 = 45, then 45 + 21 = 66, and finally 66 + 24 = 90.
Step 4: Count how many numbers there are. In this case, there are 5 numbers.
Step 5: Divide the total sum (90) by the number of numbers (5): 90 / 5.
Step 6: Calculate the division: 90 divided by 5 equals 18.
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