ŠThe accompanying table shows the results of a survey in which 250 male and 250 femaleworkers ages 25 to 64 were asked if they contribute to a retirement savings plan at work.Complete parts (a) and (b) below.Click the icon to view the survey results.(a) Find the probability that a randomly selected worker contributes to a retirementsavings plan at work, given that the worker is male.The probability that a randomly selected worker contributes to a retirement savings planat work, given that the worker is male, is.(Round to three decimal places as needed.)(b) Find the probability that a randomly selected worker is female, given that the workercontributes to a retirement savings plan at work.The probability that a randomly selected worker is female, given that the workercontributes to a retirement savings plan at work, is(Round to three decimal places as needed.)Survey ResultsMaleFemaleTotalContribute124132256PrintDo not contribute126118244DoneTotal250250500- XL

a) The contingency table is given as follows: Contribute Do not contribute Total…

Answered: The accompanying table shows the…

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 10-year study conducted by the American Heart Association provided data on how age, blood pressure, and smoking relate to the risk of strokes. Data from a portion of this study are contained in the Excel Online file below. Risk is interpreted as the probability (times 100) that a person will have a stroke over the next 10-year period. For the smoker variable, 1 indicates a smoker and 0 indicates a nonsmoker. Construct a spreadsheet to answer the following questions.
According to data on the sale of Vehicles in Barbados, it was calculated that men purchase 75% of vehicles in Babados. If 30 vehicle owners are selected randomly, find the probability that exactly 13 are men.
The percentages of weapons used in murders in a certain year are described in the pie chart. Complete parts (a) through (c) below. Types of Weapons Used in Murders Fireams, 64.9% Knives or other cutting instruments, 10.2% Unknown or other dangerous weapon, 13.1% Personal weapons (hands, fists, etc), 11.8% a. Find the probability that a weapon randomly selected from those used in murders in this specific year was a firearm. The probability that a weapon randomly selected from those used in murders in this specific year was a firearm is Type an integer or a decimal.) b. Find the probability that a weapon randomly selected from those used in murders in this specific year was NOT a firearm The probability that a weapon randomly selected from those used in murders in this specific year was NOT a firearm is (Type an integer or a decimal.) c. From inspecting the pie chart, a student concludes that in any year, 11.8% of weapons used in murders are personal weapons What would you tell the…
Assume that when adults with smartphones are randomly selected, 35% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that exactly 4 of them use their smartphones in meetings or classes.
At a bakery, a customer with a purchase amount of under $20 has a probability of 0.35 of using a credit card for the purchase, while a customer with a purchase amount of $20 or over has a probability of 0.6 of using a credit card for the purchase. Data shows that 80 % of purchases at the bakery are under $20. Given that a customer uses a credit card for a purchase, find the probability that the purchase amount was $20 or over. Give the probability as a decimal, and if rounding give to 4 decimal places.
A survey of U.S. adults ages 18-29 found that 92% use the internet. You randomly select 100 adults ages 18-29 and ask them if they use the internet. The probability that at least 86 people say they use the internet is [ ].
The table below shows the results of a survey about a junk food tax. Support Oppose Unsure Male 116 370 14 Female 289 389 25 A person is selected at random from the sample. What is the probability that the person is male and supports the tax? Your answer should be a decimal (not a percent) correct to three decimal places.
The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. Complete parts (a) and (b) below. E Click the icon to view the data on business degrees. ..... (a) Find the probability that a randomly selected student is male, given that the student received a business degree. The probability that a randomly selected student is male, given that the student received a business degree, is (Round to three decimal places as needed.) Business Graduates (b) Find the probability that a randomly selected student received a business degree, given that the student is female. The probability that a randomly selected student received a business degree, given that the student is female, is (Round to three decimal places as needed.) Business degrees Nonbusiness degrees Total Male 199,313 600,822 800,135 1,065,757 1,865,892 Female 177,694 888,063 Total 377,007 1,488,885 Print Done
Use the standard normal probability chart, included in this exam, to look up the following numbers and draw the graph for each one. a. - .0492 b. 1.6 c. 1.06 d. -5.2
Question content area top left Part 1 Use the accompanying bar graph, which shows the highest level of education received by employees of a company, to find the probability that the highest level of education for an employee chosen at random is a doctoratea doctorate. ... Question content area top right Part 1 A bar graph titled Level of Education has a horizontal axis labeled Doctoral, Master's, Bachelor's, Associate's, High School diploma, and Other and a vertical axis labeled Number of employees from 0 to 40 in increments of 5. There are vertical bars, each of which is over a horizontal axis label. The heights of the bars are as follows, where the horizontal axis label is listed first and the height is listed second: Doctoral, 2; Master's, 25; Bachelor's, 32; Associate's, 24; High School diploma, 4; Other, 1. Each bar is labeled with its height. Level of education ABCDEF010203040Number of employeesA:DoctoralB:Master'sC:Bachelor'sD:Associate'sE:High School…
The table shows the distribution, by age and gender, of the 28.5 million people in a certain region who live alone. Use the data in the table to find the probability that a randomly selected person in the region is a woman in the 18-24 age range living alone. Male Female Total Attempted Ages Ages Ages Ages Ages Ages 18-24 25-34 35-44 45-64 65-74 275 Total 0.9 2.3 2.4 0.7 1.5 1.2 1.6 3.8 3.6 4.6 1.4 1.5 4.8 6.3 5.0 2.2 9.6 3.6 BECER 13.1 15.4 28.5 The probability is (Type an integer or decimal rounded to the nearest hundredth as needed.)
If the probability that an individual will suffer a bad reaction to a given vaccine is 0.19. Determine the probability that out of 3 individuals, at least two will suffer a bad reaction. [The answer should be a number rounded to five decimal places, don't use symbols such as %]

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