Midterm The following data represent the test scores of a class. Math 23.5 69 96 77 81 85 79 98 83 99 89 67 90 Suppose a student in this class is selected randomly 66 91 77 69 80 94 1 What is the probability that the grade 6b, 67, 69. 69, $7, 27, 29, 80, 81, 83, 85, 89 90 91, 94, 96, 98, 99 grade is higher than 90 ? P = ( Higher than 90) = ( 91, 94, 96, 98, 99% = 5 = 0. 2777 = 27. 78% or 27% 2 What is the probability that the grade is lower than 90? P = ( Lower than 90) = 146, 67, 69, 69, 77, 78, 79, 80. 81, 83, 85, 896 - 12 = 0. 66 6 = 66. 629 or 66/0 18 3 What is the probability that the grade is no lower than 80? Numbers given in order. P ( not lower than 80) =0 81, 83, 85, 89, 90, 91, 94, 96, 98, 99) = 10 = 5.555 = 55- 56% or 55% 18 Consider the experiment of tossing a fair coin three times. For each toss, the possible outcomes are heads or tails. 4 List the equally likely events of the sample space for the three tosses. S = dHHH, THH, HTH, TTH, HHT, THE, HIT, TITY H