ks)Suppose that smoking and coffee drinking for a sample of 200 persons are distributed as in thefollowing contingency table:Coffee110No Coffee90SmokerNon-Smoker11585Required:a) What is the probability that a randomly selected person from the sample is a smoker?b) What is the probability that a randomly selected person from the sample is a non-smoker anddrinks coffee?c) What is the probability that a randomly selected person from the sample either non-smokes ordrinks coffeed) What is the probability that a randomly selected person from the sample smokes given that hedrinks coffee? (e) Are the two events "smoke" and drink coffee" independent? Why? (

As per bartleby guidelines we can solve only first three subparts and rest can be reposted

Answered: coffee drinking for a sample of 200o…

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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A manufacturer of videotapes ships them in lots of 1200 tapes per lot. Before shipment , 20 tapes are randomly selected from each lot and tested. If none is defective , the lot is shipped. If one or more are defective , every tape in the lot is tested . a )What is the probability that a lot will be shipped if it contains 10 defectives ? b ) What is the probability that a lot will be shipped if it contains 20 defectives ? c ) What is the probability that a lot will be shipped if it contains 30 defectives ? (USE FORMULAS NOT EXCEL)
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
A manager at your local VA hospital records the following table regarding patients seen on a given day with respect to blood type. Totals Blood Type Blood type Blood type A B AB O total 456 895 1,775 1,976 5,102 A) What is the probability of a patient having blood type O on this given day? B) What is the probability of a patient having blood type A or B on this given day?
5% of customers at the snack counter of a movie theater buy soft drinks. Among those who buy soft drinks, 50% also purchase popcorn a) What is the probability that a customer at the counter buys a drink and popcorn? Theaters use this type of calculation to decide which products should be bundled to appeal to Based on the probability so calculated, what is your recommendation customers. Whether to bundle the products or not? b) If the proportion of customer who buys popcorn is 65% . Then find the probability that a customer will buy a popcorn or a soft drink?
101) A sample of 350 students was selected and each was asked the make of their automobile (foreign or domestic) and their year in college (freshman, sophomore, junior, or senior). The results are shown in the table below. Year in College Sophomore Junior 65 100 Freshman 15 Total Senior 25 205 Car Foreign Domestic 10 45 80 10 145 Total 25 110 180 35 350 Find the probability that a randomly selected student is both a sophomore and drives a foreign automobile. 101). A) 45/350 B) 65/350 C) 65/205 D) 65/110
1,000 people were sampled to pick a card which contained a color and symbol. 350 people in total picked a card that was blue. 223 people in total picked a card with a star. 161 people chose card that was both blue and had a star on it. a) what is the probability that a person randomly chose a blue card? b) what is the probability that a person randomly chose a card that was both blue and had a star on it? c) what is the probability that a person randomly chose a card that was either blue or had a star on it?
The survey by the National Center for Health Statistics further found that 49% of adults ages 25–29 had only a cell phone and no landline. We randomly select four 25–29-year-olds: a) What is the probability that all of these adults have a only a cell phone and no landline? b) What is the probability that none of these adults have only a cell phone and no landline? c) What is the probability that at least one of these adults has only a cell phone and no landline?
A Gallup poll of 1,236 adults showed that 14% believe that bad luck follows if your path is crossed by a black cat. a) Find u, o?, o, and usual values. b) Use the above information to find the probability that a total of 203 subjects believe that bad luck follows if your path is crossed by a black cat. a) Use the above information to find the probability that less than 203 subjects believe that bad luck follows if your path is crossed by a black cat.
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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