alleryThe unbiased sample variance divides the squared deviations by
AN
BN + 1
CN - 1
DN / 2
Answer & Solution
Correct answer: C. N - 1
Bessel's correction uses N - 1 in place of N to remove the downward bias.
Keep practising Arithmetic Mean
Browse all Arithmetic Mean questions for SSC CGL, or explore more Quantitative Aptitude topics.
Related questions
Which average is described as the middle value after sorting?A weighted mean differs from a simple mean because some valuesPer capita income of a nation is an example of which statistic?The mode of a data set is the value thatIn a moderately skewed unimodal distribution, the median usually liesFor data in an arithmetic progression, the relation between mean and median is thatThe mean of any sample always liesFor an even number of ordered observations, the median is