US GDP

Consider the following dataset, which contains the domestic US gross in millions of the top-grossing movies over the last five years. 300,452,513,550,780

I. Find the Mean of the Dataset
II. Find the Squared deviation of the second observation from the mean
III. Find the squared deviation of X2 from the mean

Correct answer:

m =  519
d =  4489
x2 =  30392

Step-by-step explanation:

m=(300+452+513+550+780)/5=519
d=(452−m)2=(452−519)2=4489
x2​=((300−m)2+(452−m)2+(513−m)2+(550−m)2+(780−m)2)/(5−1)=((300−519)2+(452−519)2+(513−519)2+(550−519)2+(780−519)2)/(5−1)=30392

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