Very large sample sizesBMJ 2009; 338 doi: https://doi.org/10.1136/bmj.b737 (Published 26 February 2009) Cite this as: BMJ 2009;338:b737
- John Fletcher, clinical epidemiologist
- 1BMJ, London WC1H 9JR
If a very large random sample is taken in a population survey measuring children’s height, which if any of the following statements are true?
a) The mean is likely to increase
b) The range is likely to increase
c) The standard error of the mean is likely to increase
d) The distribution will …