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Smallest trial count for an at-least-one threshold

Question 1 of 8

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A synthetic procedure is repeated independently for each sample

On each run, the probability of the specified result is \(\frac{1}{5}\), and the probability of another result is \(\frac{4}{5}\). The trials are independent

Let \(X\) be the number of successes in \(n\) independent runs. The required probability threshold is \(0.737\)

Use the relation \(\Pr(X\ge 1)=1-(1-p)^n\) for the probability of at least one success

How many trials are required at minimum for the probability of at least one success to be above 0.737?

(a)1 mark

Which expression gives \(\Pr(X=0)\) for this process?

(b)1 mark

Use the inequality and state the smallest whole number \(n\)

Format: whole number