The following table classifies 500 people who are given the Covid-19 test by their Covid-19 test positive or negative and by whether or not have Covid-19 virus. (IN IMAGE BELOW) If one of these 500 people is selected randomly, find the following probabilities: a) P (A2 ∪ B2) b) P B1 | A1

The following table classifies 500 people who are given the Covid-19 test by their Covid-19 test positive or negative and by whether or not have Covid-19 virus. (IN IMAGE BELOW) If one of these 500 people is selected randomly, find the following probabilities: a) P (A2 ∪ B2) b) P B1 | A1

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Three balls are selected from a bag that contains 3 blue, 2 green, and 5 yellow balls. Here, we define random variables as B = number of blue balls drawn, G = number of green balls drawn, Y = number of yellow balls drawn. Please list the following values:
Eight students attended a birthday party. Three of them were confirmed Covid-19 positive. The contact tracer had conducted a random test for only two students. Find the probability distribution for random variable X which represents the number of Covid-19 positive patients. What three statements of the problem can be concluded out of the topic Covid-19?
I was wondering if you could help me understand how to find the probability of failure of the entire deck system assuming that the failures of groups A, B and C are independent of each other and that the failures of sub-groups B1 and B2 are also independent of each other
A box has 15 candies in it: 4 are butterscotch, 3 are caramel, and 8 are taffy. (Each candy falls into only one of these categories.) Ann wants to select two candies to eat for dessert. The first candy will be selected at random, and then the second candy will be selected at random from the remaining candies. What is the probability that the two candies selected are butterscotch? Do not round your intermediate computations. Round your final answer to three decimal places. (If necessary, consult a list of formulas.) ☐ ك
a bag of hard candies has 6 cherry-flavored candies, 5 lime-flavored candies, 8 apple-flavored candies and 10 strawberry-flavored candies. the cherry and strawberry candies are both shades of red and the lime and apple candies are both shades of green. suppose four candies are randomly selected from the bag. Assume that the individual candies are what matter (not the type).(a) Find the probability of selecting four cherry-flavored candies.(b) Find the probability of selecting two lime-flavored candies and two strawberry-flavored candies.(c) Find the probability of selecting four red candies.
Suppose we have a sample with five equally likely experimental outcomes: E1, E2, E3, E4, E5 Let: A = (E1, E3, E4, E5) B= (E1, E3} C = (E2, E3, E4,) a) There are 3 methods of assigning probabilities - classical, subjective and relative frequency. Which method is used above? b) Find P(A), P(B) and P(C) c) Find A and P(AG) d) Find P(B U C^C) e) Are A and C mutually exclusive? Explain.
The table below summarizes a data set regarding views on full-body scans and political affiliation. The differences in each political group may be due to chance. Complete the following computations under the null hypothesis of independence between an individual's party affiliation and his support of full-body scans. It may be useful to first add on an extra column for row totals before proceeding with the computations. -TT Party Affiliation Republican Democrat Independent Should 264 299 351 Answer Should not 38 55 77 Don't know/No answer 16 15 22 Total 318 369 450 How many Democrats would you expect to support the use of full-body scans? Round your answer to one decimal place.
A box has 17 candies in it: 5 are peppermint, 4 are butterscotch, and 8 are taffy. (Each candy falls into only one of these categories.) Yolanda wants to select two candies to eat for dessert. The first candy will be selected at random, and then the second candy will be selected at random from the remaining candies. What is the probability that the two candies selected are butterscotch? Do not round your intermediate computations. Round your final answer to three decimal places. 1 S ?
A gambler belives that he has learned to predict the color of a card befroe it is drawn from the deck. In order to test this, he predicts a color, draws a card from a fresh deck of 52 cards and observes its color, replaces the card, and then shuffles.He repeats this process 10 times, and finds that he got 5 predictions incorrect.Using a sign test, test the hypothesis that the gambler is getting fewer predictions inccorect than one would expect due to chance.Critical Value = ?
Suppose we know that 0.1% of the population is infected with COVID-19 (the probability that a randomly selected individual is infected with COVID-19 is 0.001). We have a test for COVID-19 that is 99.9% accurate (if the person is infected, then the probability of being tested as POSITIVE is 0.999; if the person is NOT infected, the probability of being tested as NEGATIVE is 0.999) What is the probability that Draco is actually infected with COVID-19, given that he has tested positive? Hint: Draw the appropriate tree diagram and use Bayes' Theorem.
If you have 4 red cards and 20 blue cards in your right hand, but your left hand is empty. Your friend has selected 4 cards without replacement in random and put them in your left hand. Then, he selected a card in random from your left hand. The conditional probability that two red cards and two blue cards were moved from your right hand to your left hand given that the card selected from your left hand is blue is: Select one: a. 0.3671 b. 0.4632 c. 0.0644 d. 0.4895 e. 0.3974