Mean = (15+25+35+45+55+65)/6 = 40
Mean Deviation = (33*(15-40) + 264*(25-40) + 303*(35-40) + 214*(45-40) + 128*(55-40) + 58*(65-40))/(33+264+303+214+128+58)
Mean Deviation = -7.9
Find the mean deviation about the mean of the following data of ages of married men in a certain town.
Ages 15-24 25-34 35-44 45-54 55-64 65-74
No. of Men 33 264 303 214 128 58
1 answer