A market research firm is interested in surveying certain attitudes in a smallcommunity. There are 125 households broken down according to income, ownership of amobile and ownership of a Laptop.Households with annualincome ofHouseholds with annualincome above.-1,80,000 or less1,80,000MobileSubscriberNoMobileMobileSubscriberNoMobileOwn Laptop set27201810No Paptop set18101210() What is the probability of obtaining a laptop owner in drawing at randomLi) If a household has income over Rs. 1,80,000 and is a mobile subscriber, what is theprobability that he has a laptop?(iün what is the conditional probability of drawing a household that owns a laptop, given thatthe household is a mobile subscriber?in Are the events 'ownership of a laptop' and 'mobile subscriber' statistically independent ?Comment.

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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 sample of residents of Santa Monica were asked two questions, whether they had taken a course at Santa Monica College and what type of job they had or hoped to have. Their responses are summarized in the two-way data table below. Tech Industry Health Care Job Business/Finance Other Job Job Category Has taken a 53 104 93 class at SMC 69 Has not taken a class at SMC 82 28 38 151 Use the table to answer the following questions, a. What is the probability that a randomly chosen person has not taken a class at SMC and answered health care job. [Select] b. What is the probability that a randomly chosen person has taken a class at SMC or answered Tech Industry Job? I Select c. Would it be unusual for a person to have not taken a class at SMC and answered health care job? Why or why not? ( Select]
A sociologist is analyzing Social Security data. The number of individuals in the sample is 5. The probability that an individual receives Social Security is 20%. What is the probability that exactly 3 of the 5 individuals receive Social Security? O 0.0512 O 0.0305 O 0.6125 O 0.1024
5. Big babies: The Centers for Disease Control and Prevention reports that 25% of baby boys 6-8 months old in the United States weigh more than 20 pounds. A sample of 150 babies is studied. a. Approximate the probability that more than 40 weigh more than 20 pounds. b. Approximate the probability that 35 or fewer weigh more than 20 pounds. c. Approximate the probability that the number who weigh more than 20 pounds is G 20
In a class of students, the following data table summarizes how many students passed a test and complete the homework due the day of the test. What is the probability that a student chosen randomly from the class did not complete the homework? Passed the test Failed the test Completed the homework 11 7 Did not complete the homework Answer: Submit Answer attempt 4 out of 4 problem 1 out of max 1
The 2015 National Vital Statistics Report provides information on how the nearly four million live births that occurred in 2014 broke down by birth order. Choose at random a baby born in the United States in 2014. Baby's birth order Probability mean = 1 2 0.391 0.319 The few babies who were 9th or more in birth order are included in the "8" birth order group. In 2014, 39.1% of the nearly 4 million live births in the United States were to first-time mothers. 3 5 6 7 4 0.168 0.072 0.028 0.012 0.005 standard deviation = What are the properties of the sampling distribution of the proportion of births to first-time mothers in random samples of 500 births from 2014? (Enter your answer for the mean rounded to three decimal place and your answer for the standard deviation rounded to four decimal places.) 8 0.005
The chance of having a sister or a brother is equally likely. If you have four siblings, there are sixteen equally likely outcomes possible. Create a Probability Distribution to the outcomes based on the total number of sisters given you have 4 siblings Total Number of Sisters ..Probability .. List your outcomes (Total Number of Sisters) from least to greatest. Represent the probabilities using 4 decimal places
2. The probability model of the number of dinners that a typical American cook in a week is as follows. Number of dinners: 1 3 4 6. 7. Probability: 0.05 0.05 0.1 0.15 0.15 0.2 ? 0.2 Complete the probability table (find the missing probability)
Question: A survey is conducted among 70 people. Details about if theyhave diabetes and their family history of diabetes are collected. 48 people reported that they have a family history of diabetes. 32 of them reported to have diabetes among which 23 of them had a family history of diabetes. Construct a contingency table with this information. What is the probability that an individual has diabetes given that the individual had a family history of diabetes?
A police officer randomly selected 558 police records of larceny thefts. The accompanying data represent the number of offenses for various types of larceny thefts. (a) Construct a probability model for type of larceny theft. (b) Are coin-operated machine larcenies unusual? (c) Are larcenies from motor vehicles unusual? Data Table Click the icon to view the table. Type of Larceny Theft Pocket picking Purse snatching Shoplifting Number of Offenses 8 (a) Complete the table below. Type of Larceny Theft Pocket picking Probability 122 From motor vehicles 224 Purse snatching Motor vehicle accessories 60 Bicycles From buildings From coin-operated machines Shoplifting 30 95 From motor vehicles 10 Motor vehicle accessories Вicycles From buildings From coin-operated machines Print Done (Round to three decimal places as needed.)
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According to a study done by Nick Wilson of Otago University Wellington, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267. Suppose you sit on a bench in a mall and observe people's habits as they sneeze. Complete parts (a) through (c). Question content area bottom Part 1 (a) What is the probability that among 18 randomly observed individuals, exactly 4 do not cover their mouth when sneezing?

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