Find to the nearest tenth

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

How do you find the distance of each number from the mean

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6