Teaching DSSSB PGT Mock Test 2025 General Knowledge Geography (World Geography) Mapping

'Standard error' of the sample of success can be determined by the following formula:

1
\(\sqrt{pq}\)
2
\(\sqrt{\frac{\sigma}{n}}\)
3
\(\sqrt{\frac{pq}{n}}\)
4
\(\frac{\sigma}{\sqrt n}\)
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