The table below presents the number of cellular phones owned in the last year ba

Question

The table below presents the number of cellular phones owned in the last year based on a sample of 50 people. Using this date answer the following question:

Find:

a) Average number of cellular phones owned in the last year?

b)What is the median number of the cellular phones owned in the last year?

c)Mode of the number of the cellular phones owned in the last year?

d)What is the range of the number of the cellular phones owned in the last year?

Explanation / Answer

a)average number of cellular phones owned in the last year =(0*10+1*15+2*17+3*8)/(10+15+17+8)=1.46

b)as total number of people =50; median should lie at (n+1)/2 th value which 25.5 lies in mid of 1 and 2

hence median =(1+2)/2=1.5

c)mode =2 ; as it has highest frequency

d) Range=max-min=3-0=3

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