Question
The number of years of education acquired by a sample of 100 adults in a locality is as follows.
Years of education0−44−88−1212−1616−2020−24No. of people1022322484
Answer: Option C
:
C
Was this answer helpful ?
:
C
Let the assumed mean be 10 i.e. A = 10
XFD=X−AFDFD2210−8−80640622−4−88352103200014244963841888645122241248576∑F=100∑FD=40∑FD2=2464
σ=√∑FD2∑F−(∑FD∑F)2=√2464100−(40100)2=√24.64−0.16=√24.48=4.95
Was this answer helpful ?
More Questions on This Topic :
Latest Videos
Latest Test Papers
Submit Solution