7. mean of 6 and median of 8.... (8 + 8 + 8 + x) / 4 = 6 (24 + x) / 4 = 6 24 + x = 24 x = 24 - 24 x = 0
ur numbers are : 0,8,8,8.....has a median of 8 and a mean of 6
8. (a) probability of tails is 30/100 reduces to 3/10 (b) 70/100 = x/300 cross multiply (100)(x) = (300)(70) 100x = 21000 x = 21000/100 x = 210 heads would be expected