× | Vyl Brase. Understanding Basic | G Homel Chegg.com webassign.net/web/Student
ID: 2936018 • Letter: #
Question
× | Vyl Brase. Understanding Basic | G Homel Chegg.com webassign.net/web/Student/Assignment-Responses/submit?dep= 1 648 786 1 discrete elp? Read It Talk to a Tutor I Previous Answers BBBasicStat7 6.1.011 he income distribution of super shoppers? A supermarket super shopper is defined as a shopper for whom atI come units are in thousands of dollars, and each interval goes up to but does not include the given high value. 5-15 15-25 25-35 35-45 45-55 55 or more Income range Midpoint x Percent of super shoppers 50 20% 60 9% 40 20 13% 30 21% 10 20% 17% (a) Using the income midpoints x and the percent of super shoppers, do we have a valid probability distribution Yes. The events are distinct and the probabilities sum to 1. O No. The events are indistinct and the probabilities sum to more than 1.Explanation / Answer
The events are distinct if we keep the left limit as inclusive and right limit as exclusive. Also the sum of the probabilities
= 0.2 + 0.13 + 0.21 + 0.17 + 0.2 + 0.09 = 1.
So the 1st Option is the correct choice. (Ans).
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.