17. [-/3 Points]DETAILSSuppose that the amounts that students at a college spend on textbooks this semester have a normal curve with mean u = $390 and standard deviation o = $130. (Round youranswers to four decimal places.)A USE SALT(a) What is the probability that a randomly selected student spends less than $481 on textbooks this semester?(b) What is the probability that a randomly selected student spends more than $325 on textbooks this semester?(c) What is the probability that a randomly selected student spends between $325 and $481 on textbooks this semester?

Answered: Image /qna-images/answer/b8333af3-16f1-45fa-a502-b51d8a97d31c.jpg

Answered: ) What is the probability that a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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During the summer in a particular city the probability of getting a thunderstorm in the afternoon is 65%. a.) What is the probability of not getting a thunderstorm in the afternoon? b) What is the probability of getting a thunderstorm three afternoons in a row?
Please help me with Q:D I tried a-lot
Q6- The average number of typographical errors on a page of a certain magazine is 0.02. What is the probability that the next 50 pages you read contains a) At most 3 errors b) exactly 3 errors?
A coin is weighted in such a way that it lands "heads side up" 70% of the time. The coin is to be flipped until there are exactly 5 flips that land "heads side up". What is the probability that the 5th "heads side up" occurs on the 8th toss? 25
For a week, a clothing company tracks the amounts spent by its customers, with the results shown to the right. a) What is the probability that a randomly chosen customer spent $120 or more? b) What is the probability that a randomly chosen customer did not spend less than $80? c) What is the probability that a randomly chosen customer spent between $40 and $159.99? a) What formula should be used to find the probability that a randomly chosen customer spent $120 or more? O A. P($120 or more) = 1 - P($120 - $159.99) O B. P($120 or more) = P($120 - $159.99) O C. P($120 or more) = P($120 - $159.99) + P($160-$199.99) - P($200 or more) O D. P($120 or more) = P($120 - $159.99) + P($160 - $199.99) + P($200 or more) The probability that a randomly chosen customer spent $120 or more is (Simplify your answer.) b) What formula should be used to find the probability that a randomly chosen customer did not spend less than $80? O A. P(not less than $80)=P($80 - $119.99) O B. P(not less than $80) = 1…
The number of customers calling a call centre is, on average, 3 in 30 minutes. What is the probability that at least 1 customer calls in 11 minutes? (3 d.p.)
An um contains 2 red balls, 2 green balls, and 8 yellow balls. Three balls are drawn at random, with replacement. What is the probability of drawing two yellow balls in a row, followed by a red ball? Answers should be decimals correct to three decimal places QUESTION S An um contains 2 red balls, 2 green balls, and 7 yellow balls Three bats are drawn at random, without replacement. What is the probability of drawing two yellow balls in a row, followed by a red ball? Answers should be decimals correct to three decimal places
4) In Toronto, Canada, 55% of people pass the drivers’ road test. Suppose that 100 people take the test. d) What is the probability that at least 49 passed? e) What is the probability that at most 45 passed?
3. For males in a certain town, the systolic blood pressure is normally distributed with a mean of 135 and a standard deviation of 8. a) What is the probability that a randomly selected male's systolic blood pressure will be greater than 143? b) What is the probability that a randomly selected male's systolic blood pressure will be less than 119?

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