Q. In the data set below, what is the variance?4,1,6,9,2,3,3If the answer is a decimal, round it to the nearest tenth.variance (σ2): _____
Calculate squared differences: Now, let's calculate the squared differences from the mean.(4−4)2+(1−4)2+(6−4)2+(9−4)2+(2−4)2+(3−4)2+(3−4)2=0+9+4+25+4+1+1=44
Divide sum for variance: Finally, we divide the sum of squared differences by the number of values to get the variance.Variance σ2 = 744Variance σ2≈6.3 (rounded to the nearest tenth)
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