Question 1 has 3 Parts:

Complete the expected value table. (Enter exact numbers as integers, fractions, or decimals.) X P(x) X*P(x) 0 10.2 1 0.2 2 0.2 3 10.4A ballet instructor is interested in knowing what percent of each year's class will continue on to the next, so that she can plan what classes to offer. Over the years, she has established the following probability distribution. Let X = the number of years a student will study ballet with the teacher. Let P(x) = the probability that a student will study ballet x years. Complete the table below using the data provided. (Enter exact numbers as integers, fractions, or decimals.) X P(x) x*P(x) 1 0.10 2 0.10 0.20 5 0.20 6 0.20 7 0.05A ballet instructor is interested in knowing what percent of each year's class will continue on to the next, so that she can plan what classes to offer. Over the years, she has established the following probability distribution. Let X = the number of years a student will study ballet with the teacher. Let P(x) = the probability that a student will study ballet x years. X P(x) X*P(x) 1 0.10 2 0.10 3 0.15 4 5 0.25 6 0.20 7 0.10 What does the column "x*P(x)" sum to? (Enter an exact number as an integer, fraction, or decimal.)