answer questions 7 and 8 please

Question 7 1 pts When a customer enters a store, there are three outcomes that can occur: buy nothing, buy a small amount, or buy a large amount in this situation, if a customer buys a large amount, he she cannot also buy a small amount or buy nothing. Thus, the events are O Independent O mutually exclusive. O all Inclusive O dependent events Question 8 For a standardized normal distribution, calculate P(-128