Variable Use the proper probability notation and if you are using technology identify the function and label the inputs. 1. A bag contains 10 red balls and 20 white balls. A ball is randomly chosen and replaced until a red ball is selected. (a) Determine if this setting is geometric. (b) Calculate the probability of selecting exactly 5 balls before you get your first red ball. (c) Calculate the probability of selecting less than 7 balls before you get your first red ball. (d) Calculate the probability of selecting more than 6 balls before you get your first red ball. (e) Calculate the mean and standard deviation. Interpret in context