31.693 rounded to the nearest whole number

The answer would be 32

Step-by-step explanation:

Hope this helps! :)

Pr(X >= 11) = 0.33586800937

Step-by-step explanation:

This scenario can be modeled by a binomial distribution model.

The probability of success, p = 0.82 is constant.

The are 12 independent trials.

We let the random variable X denote the number of adults who need correction for their eyesight. We are then to determine the probability that X is at least 11;

Pr(X=11 or 12) = Pr(X=11) + Pr(X=12)

                       =  0.33586800937

11 is significantly a high number of adults requiring eyesight correction.