find the a.mean b. the modal class these data represent the net worth (in millio

Question

find the         a.mean    b. the modal class these data represent the net worth (in millions of dollars) of45 national corporations CLASSLIMITS                   FREQUENCY 10-20                                       2 21-31                                       8 32-42                                       15 43-53                                       7 54-64                                       10 65-75                                       3 find the         a.mean    b. the modal class these data represent the net worth (in millions of dollars) of45 national corporations CLASSLIMITS                   FREQUENCY 10-20                                       2 21-31                                       8 32-42                                       15 43-53                                       7 54-64                                       10 65-75                                       3

Explanation / Answer

(a) mean =(15*2+26*8+37*15+48*7+59*10+70*3)/(2+8+15+7+10+3)= 42.86667 (b) the modal class is 32-42

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