Statistics MATH 1342 Spring 2018 Quiz: Chapter 3.1 Quiz This Question: 1 pt 23 o
ID: 3045430 • Letter: S
Question
Statistics MATH 1342 Spring 2018 Quiz: Chapter 3.1 Quiz This Question: 1 pt 23 of 25 (22 complete An individual stock is selected at random from the portfolio represented by the box-and-whisker plot shown to the right. Find the probability that the stock price is (a) less than $22, (b) between $22 and $53, and (c) $31 or more. 14 22 31 53 94 x 10 20 30 40 50 60 70 80 90 100 (a) The probability that the stock price is less than $22 is(0o not round) (b) The probability that the stock price is between S22 and S53 is (Do not round ) (c) The probability that the stock price is $31 or more is (Do not round ) Enter your answer in each of the answer boxes.Explanation / Answer
(A) Pr( X < $ 22) = 0.25 as the $ 22 is Q1 here.
(B) Pr($ 22 < X < $ 53) = 0.75 - 0.25 = 0.50 as $ 22 is Q1 and $ 53 is Q3 here.
(C) Here median value is $ 31
Pr(X > $ 31) = 0.50 as theereare 50 % probability at median.