Wright . as a fraction in simplist form

In trapezoid bath, ah=19.7 and et=16.1. identify be.

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.

Standard deviation of 19,29,21,22,23