Question

Please I need help with this problems.....As you can see, I failed most of it. Show work please. Thanks

the following frequency distribution that corresponds to the scores received on a recent test. rest Scores, X Frequeney 4 91-100 81.90 71-80 61-70 c61 Totals 118 OS1 17 a. Fill in the table above with the correct decimal (3 sig. fig.) values for PCX-x). (5 pts.) Using the information in the table above, compute the following probabilities for a randomly selected test score. Partial credit can only be awarded where work is shown. b. i. P(the test score is less than 81 and greater than 60)-.76 ii. P(the test score is less than 81 given that it is greater than 60)- (2 pts.) r(Cnり) = .lay +.n8 Suppose that two test scores are randomly selected. What iş the probability that both are greater than 81?52 ii. (3 pts.)

Answer 1

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