MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Related questions
Question
Determine whether the random variable is discrete or continuous. In each case, state the possible values of the random variable. (a) The number of people in a restaurant that has a capacity of 100. (b) The time it takes for a light bulb to burn out.
Transcribed Image Text:Determine whether the random variable is discrete or continuous. In each case, state the possible values of the random variable.
(a) The number of people in a restaurant that has a capacity of 100.
(b) The time it takes for a light bulb to burn out.
(a) Is the number of people in a restaurant that has a capacity of 100 discrete or continuous?
A. The random variable is discrete. The possible values are 0sxs 100.
B. The random variable is continuous. The possible values are 0<xs100.
C. The random variable is discrete. The possible values are x = 0, 1, 2,., 100
D. The random variable is continuous. The possible values are x = 0, 1, 2,..., 100
(b) Is the time it takes for a light bulb to burn out discrete or continuous?
A. The random variable is continuous. The possible values are t> 0.
B. The random variable is continuous. The possible values are t = 1, 2, 3, ..
C. The random variable is discrete. The possible values are t= 1, 2, 3, ....
D. The random variable is discrete. The possible values are t>0.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps with 2 images
Knowledge Booster
Similar questions
- Pain: A recent survey asked 804 people how many days they would wait to seek medical treatment if they were suffering pain that interfered with their ability to work. The results are presented in the following table.. tab F =lock fn esc ➜ esign. Skip Part Ⓡ Part: 0/5 1 ? Number of Days 0 Consider these 804 people to be a population. Let X be the number of days for a person sampled at random from this population. Type here to search Q A H N hp 1 @ 2 3 Send data to Excel 2 4 5 Total Check W S (F3 ak # 3 X alt Frequency 25 429 260 65 E D $ 16 9 804 O V 4 O R % F 5 T no 40 G 6 & V C Y 99+ 7 H hp a U B N + 8 J © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center AODE S O 144 ( 9 M 111 > O " AMI FAR TOPY KL Save For Later Submit Assignment Accessibility 40 2/21/2023 9:22 PM { alt [ ? T Insert . ← 1 prt sc ctri pause olo A 9 backspace Espa 00 USE YOUR SMARTPHONE FOR Reviews Videos Features Specs Support E SCAN de (arrow_forwardLDL - low density lipoprotien - cholesterol is considered the bad cholesterol. A pharmaceutical company conducts a clinical trial on people with high levels of LDL cholesterol. The trial involves a random sample of n = 16 persons who have high levels of LDL. Each person has their LDL level measured prior to the beginning of the drug trial. Each person is then to take a new drug that is believed to lower ones LDL levels. After a period of 4-weeks, the LDL level of each person is measured again. The difference between the initial LDL level and the LDL-level four weeks after taking the drug is then computed. -0.56, -0.07,-0.2, -0.42, -0.32, -0.99, -0.26, -0.32, -0.73, -0.51, -0.59, -0.62, -0.78, -0.04, -0.5, 0.13 Data from the sample, are saved in the Download.csv file. Assuming the difference in the LDL-levels is Normally distributed, find a 97% confidence interval for μ, the mean difference in the LDL-level of a person after taking the drug for four weeks. Use at least four decimals for…arrow_forwardSolve all pleasearrow_forward
- A probability distribution gives the possible values of the random variable and the probabilities of each random variable. Probabilities have to be between 0 and 1. The sum of all the probabilities has to be 1. Additionally, the different values for the random variable are disjoint possibilities. In other words P(X = a and X = b) = 0 if a and b are different outcomes. Fill in the missing value for the probability distribution. X P(X) 3 0.055 4 0.11 5 0.097 6 ? What is P(X=6)?arrow_forwardPls help with a-f 1arrow_forwardStatistics CSarrow_forward
- Diagnostic tests of medical conditions can have several types of results. The test result can be positive or negative, whether or not a patient has the condition. A positive test (+) indicates that the patient has the condition. A negative test (−) indicates that the patient does not have the condition. Remember, a positive test does not prove the patient has the condition. Additional medical work may be required. Consider a random sample of 200 patients, some of whom have a medical condition and some of whom do not. Results of a new diagnostic test for a condition are shown. Condition Present Condition Absent Row Total Test Result + 106 24 130 Test Result − 19 51 70 Column Total 125 75 200 Assume the sample is representative of the entire population. For a person selected at random, compute the following probabilities. (Enter your answers as fractions.) (a) P(+ | condition present); this is known as the sensitivity of a test. (b) P(− | condition present);…arrow_forwardDiagnostic tests of medical conditions can have several types of results. The test result can be positive or negative, whether or not a patient has the condition. A positive test (+) indicates that the patient has the condition. A negative test (−) indicates that the patient does not have the condition. Remember, a positive test does not prove the patient has the condition. Additional medical work may be required. Consider a random sample of 200 patients, some of whom have a medical condition and some of whom do not. Results of a new diagnostic test for a condition are shown. Condition Present Condition Absent Row Total Test Result + 108 22 130 Test Result − 21 49 70 Column Total 129 71 200 Assume the sample is representative of the entire population. For a person selected at random, compute the following probabilities. (Enter your answers as fractions.) (a) P(+ | condition present); this is known as the sensitivity of a test. Your answer must be a fraction,…arrow_forwardState whether the random variable is discrete or continuous. O continuous O discrete (e) Weigh a shipment of goods. random variable x = number of pounds Identify the values that the random variable can assume. O 0, 1, 2,... O 0, 1, 2, 16 Ox>0 0 0sxs1 none of these State whether the random variable is discrete or continuous. continuous O discretearrow_forward
- The probability Kayla will score above 80% on a mathematics test is 0.60. Kayla will take five tests this semester. We want to find the probability she will score above 80% on exactly four out of the five tests. What is the probability of Kayla scoring above 80% on exactly four out of the five tests?arrow_forwardDiagnostic tests of medical conditions can have several types of results. The test result can be positive or negative, whether or not a patient has the condition. A positive test (+) indicates that the patient has the condition. A negative test (−) indicates that the patient does not have the condition. Remember, a positive test does not prove the patient has the condition. Additional medical work may be required. Consider a random sample of 200 patients, some of whom have a medical condition and some of whom do not. Results of a new diagnostic test for a condition are shown. Condition Present Condition Absent Row Total Test Result + 110 20 130 Test Result − 21 49 70 Column Total 131 69 200 Assume the sample is representative of the entire population. For a person selected at random, compute the following probabilities. (Enter your answers as fractions.) (a) P(+ | condition present); this is known as the sensitivity of a test. (b) P(− | condition present);…arrow_forwardA product is composed of four parts. In order for the product to function properly in a given situation, each of the parts must function. Two of the parts have a 0.79 probability of functioning, and two have a probability of 0.83. What is the overall probability that the product will function properly? (Round your answer to 4 decimal places.) Probabilityarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning 
Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSON
The Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. Freeman
Introduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman