Provide an appropriate response. Each year advertisers spend billions of dollars purchasing commercial time on network sports television. In the first 6 months of 1988, advertisers spent $1.1 billion. Who were the largest spenders? In a recent article, listed the top 10 leading spenders (in million of dollars): Company A $72.7 Company F $25.7 Company B 63 Company G 252 Company C 57.4 Company H 215 Company D 55.6 Company I 215 Company E 30.7 Company J 19.8 Calculate the sample variance. 39.31 415.80 52.90 20.39

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