Question The frequency distribution shown below shows the nu

Question: The frequency distribution shown below, shows the number of magazine subscriptions per household in a random sample (n=50). The mean number of subscriptions per household is approximately:

(b) Mean = 2.0

(c) Mean = 1.8

(d) Mean = 1.5

(e) Mean = 92

(f) None of the above

2 Number of Magazines, x Frequency 128 17 732

Solution

Consider:

Thus,      
      
Mean = Sum(xf) / Sum(f) =    1.84 or 1.8 [ANSWER, C]

x	f	x f	x^2 f
0	12	0	0
1	8	8	8
2	17	34	68
3	7	21	63
4	3	12	48
5	1	5	25
6	2	12	72