How do we know to use a binomial distribution here? Based on these three reasons:
Each event is independent. Each tire puncture is independent of any other puncture. The probability of puncture is constant at p = 0.00005 (there are four zeros between the decimal point and the 5).
There are a fixed number of trials. In this case, there are n = 10,000 trials.
There are two outcomes. Either a tire is punctured, or it is not punctured.
To find the mean you add all the numbers then divide by the amount of numbers there are so it would be 18+14+8+22+25+8=95 then divide 95 by 6. You get 15.8333333 the answer is A