2. On weekday afternoons, Nam Do-san fixes cellular phones for money. He has calculated the following distribution of the number of customers he will see each day. How many customers do you think he will get in a day? (See example 1 or example 2 on pages 12 and 13) Number of Customers, x 20 25 30 35 40 Probability P(x) 0.15 0.35 0.30 0.15 0.05 Steps Solution 1. Identify and substitute the given facts to the formula in solving mean. 2. Multiply outcome or value of the random variable x and its corresponding probabilityP(x). 3. Get the sum of the results obtained in Step 2. 4. Interpret the computed mean