[Steps Shown] Christine is currently taking college astronomy. The instructor often gives quizzes. On the past four quizzes, Christine got the following
Question: Christine is currently taking college astronomy. The instructor often gives quizzes. On the past four quizzes, Christine got the following scores.
19 23 21 17
Use the Defining Formula to find the variance and standard deviation for Christine's quiz score sample. Show each step, using the correct symbols for each statistic. Round the final answers to one more decimal place than the data.
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