In-a-binomial-distribution-with-mean-4-and-the-probability-of-success-is-1-3-then-the-number-of-trials-is-

Question Number 79001 by gopikrishnan last updated on 22/Jan/20

$${In}\:{a}\:{binomial}\:{distribution}\:{with}\:{mean}\:\mathrm{4}\:{and}\:{the}\:{probability}\:{of}\:{success}\:{is}\:\mathrm{1}/\mathrm{3},\:{then}\:{the}\:{number}\:{of}\:{trials}\:{is} \\ $$

Commented by jagoll last updated on 22/Jan/20

$$\mathrm{mean}\:=\:\mathrm{n}×\mathrm{p} \\ $$$$\mathrm{4}=\:\mathrm{n}×\frac{\mathrm{1}}{\mathrm{3}}\:\Rightarrow\mathrm{n}\:=\:\mathrm{12} \\ $$

Commented by mr W last updated on 22/Jan/20

$${please}\:{don}'{t}\:{type}\:{the}\:{whole}\:{post}\:{in}\:{a} \\ $$$${single}\:{line}!\:{it}'{s}\:{terrible}\:{to}\:{read}! \\ $$$${thank}\:{you}\:{sir}! \\ $$

Commented by gopikrishnan last updated on 22/Jan/20

$${thank}\:{u}\:{sir} \\ $$

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