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प्रश्न
A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability of two successes.
उत्तर
The repeated tosses of a pair of dice are Bernoulli trials. Let X denote the number of times of getting doublets in an experiment of throwing two dice simultaneously four times.
Probability of getting doublets in a single throw of the pair of dice is
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