Question

QUESTION 2 Exercises 19.8 and 19.10 Choose a college student at random and ask his or her class rank in high school. Probabilities for the outcomes are as follows: Rank top 20% second 20% third 20% lowest 40% Probability 0.40 0.30 0.20 What must be the probability that a randomly chosen student was in the bottom 40% of his or her high school class? A. Assign the digits as follows: 0-4 represent top 20%; 0-3 represent second 20%; 0-2 represent third 20% and 0-1 represent lowest 40%. To simulate the class standing of randomly chosen students, how would you assign digits to represent the four possible outcomes listed? B.2 C. 90% Simulate 10 repetitions of the foundation's choices using line 119 of Table A. How many of your 10 samples have no more than 2 in the lowest 40%? D. Assign the digits as follows: 0-3 represent top 20%; 4-6 represent second 20%; 7-8 represent third 20% and 9 represents lowest 40%. E. 0.10 The Random Foundation decides to offer 8 randomly chosen students full college scholarships. What is the probability that no more than 2 of the 8 students chosen are in the bottom 40% of their high school class? F. 9 G. 20% Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Save and Submit

Answer 1

lowesto 72 Rank Top 20l second dol. Third 20% probabints 0.4 0.3 0.2 Sum of all probabilities ar Pllowest hool) = 1-0.4-0.3-0.g = -0.9 beto pl that randomly chosen Shitent - bottom 40% of his/her - Rl bottom u04) was in school class) - digns - oto 9 total lo Top 20% second 20% Third got lowest no% - - - loxo-le 10x0.3 100 2 10xol = = 3 :2 I 0-3 represent secand 20% 9 represents top 20% ; 7-8 represent lowest hool 4-6 represent third 20% nado Il no p=ool more than 2) = P(X(2) = R(x0) + P(x=1) + P(X=25 zlec font que ce contcontenu de stanje

P(x) = nc, pe (1-pynt - { Plxs 29 -0.9298 ra samples Tox 09998 (1) 8 studenty - n=8 P=p/ bottom hot.) p=0.10 plx=x) = ncx pe crem plno more than a = ? - P(X82) = 9 p(8.2) = plxco) + P(x-1) + P(x=2 - =&019 20.96 +87160960794 + Ez (0:19C09] Ya 0.969