Probability question

Question

If one event has an 80% of occuring. Whats the probability of that event occuring if repeated 2,5,10 times. In other words if 5 events all with 80% probability of occuring ran simultaneously what is the probability of one or more occuring?

Answer 1

P(1 or more) = 1 - P(0)

For any case with n tries: P(1 or more) = 1 - (1-p)ⁿ

In 10 tries: P(1 or more) = 1 - (.2)¹⁰

You can work out the rest.

Please consider a tutor. Take care.

Answer 2

Replace the p=0.01 with your p=0.8 in the solved question below.

https://www.quora.com/How-would-one-calculate-the-probability-of-the-occurrence-of-an-event-over-multiple-attempts-1-chance-over-10-tries