In a Statistics Class, 10 Scores Were Randomly Selected with the Following

question 120

Multiple Choice

In a statistics class, 10 scores were randomly selected with the following results (mean = 71.5) : 74, 73, 77, 77, 71, 68, 65, 77, 67, 66. What is the variance?

• A) 22.72
• B) 12.00
• C) 4.77
• D) 516.20
• E) 144.00

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A systematic process for experimentation that is used to explore observations and answer questions.

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The practice of cleaning hands to prevent the spread of germs and infections, typically by washing with soap and water or using hand sanitizer.