What is the variance of the data set (4,6,7,10)
1 answer:
Answer:
Step-by-step explanation:
<u>Given data set </u>
<u>To find</u>
<u>Solution</u>
- <em>The Variance is defined as the average of the squared differences from the mean.</em>
<u>The mean is:</u>
- x = (4 + 6 + 7 + 10)/4 = 6.75
<u>The variance is:</u>
- σ² = [(4 - 6,75)² + (6 - 6.75)² + (7 - 6.75)² + (10 - 6.75)²]/4 = 4.6875
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