Find the mean age in years is a step deviation method from the frequency distribution class interval 18 years 25- 29,30- 34, 35 - 39, 40 -44, 45 -49 ,50_59 frequency 4 ,14, 22, 16 ,6 ,5 ,3 and total is 70
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Answer:
substract 0.5 in lower limit
& add 0.5 in upper limit in class interval and follow the same step deviation method
Step-by-step explanation:
lalitameena2003:
please give me full solution
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