the mean of observations 18, 14,15,19 , 15 ,a ,12, 15 and 16 is 16. find the value of a. Then find the median and mode.
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1
Answer:
18+14+15+19+15+a+12+15+16/9 = 16
32+34+a+27+16/9 = 16
66+a+43 = 144
109+ a =144
a = 35
median = 12,14,15,15,15,16,18,19,35
median = 15
mode = 15
Answered by
0
Answer:
sorry I don't know
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