6. To save time Nivaldo’s chemistry professor grades only 3 randomly chosen problems of a 12-problem assignment. Suppose that Nivaldo has 9 out of 12 problems correct on the assignment. a) Compute the probability that the 3 chosen problems are correct (Nivaldo scores 100%) . b) Compute the probability that all 3 chosen problems are incorrect (Nivaldo scores 0%). c) Compute the expected value of the number of correct problems chosen by the professor.

6. To save time Nivaldo’s chemistry professor grades only 3 randomly chosen problems of a 12-problem assignment. Suppose that Nivaldo has 9 out of 12 problems correct on the assignment. a) Compute the probability that the 3 chosen problems are correct (Nivaldo scores 100%) . b) Compute the probability that all 3 chosen problems are incorrect (Nivaldo scores 0%). c) Compute the expected value of the number of correct problems chosen by the professor.

Name: DISCRETE MATHEMATICS: 6. To save time Nivaldo’s chemistry professor gr
Uploaded: 2024-03-20T06:38:44.000Z
Channel: Bartleby
Description: DISCRETE MATHEMATICS: 6. To save time Nivaldo’s chemistry professor grades only 3 randomly chosen problems ofa 12-problem assignment. Suppose that Nivaldo has 9 out of 12 problems correct on theassignment.a) Compute the probability that the 3 chosen

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

See similar textbooks

Similar questions

Every day a school bus driver passes the same traffic light twice, once before school and once after. Each time he passes the light, he records if it is red, green, or yellow. Here is a summary of the data he got after 200 days. Traffic light before school red red red green green green yellow yellow yellow Traffic light after school red green yellow red green yellow red green yellow Number of days 25 38 12 34 36 11 16 13 15 Suppose the driver will continue recording the colors for 150 more days. In how many of these 150 days will the light be yellow exactly once? Use the data to make a prediction.
Part B question is in photo
Example 21.5) The following table shows three states of nature (events) and three actions. The amount that a person will gain in each combination of state of nature and action is shown in the table. Prob- abilities for three states of nature are also given. Action A¡ (Rs) A2 (Rs) A3 (Rs) State of Nature (Event) S, S2 S3 25,000 30,000 40,000 -7,000 50,000 25,000 -18,000 -8,000 60,000 State of nature S3 S2 0.5 Probability 0.3 0.2 (i) Find out values of EP, EPPI and EVPI. (ii) A research firm has agreed to conduct a survey to provide the management with additional infor- mation regarding the states of nature. It will charge Rs 12,000 for undertaking this survey. Do ou think that the survey should be conducted? you
Statistics: Problem Of ATLP: (a). Show that the weighted arithmetic mean of first n natural numbers whose weights are equal to the corresponding numbers is equal to (2n + 1)/3. (b) Also obtain simple arithmetic mean.
Hello, can you help with with this problem?
statistical design of experiments question
Psychology 215 – Basic Statistical Methods - Andrzejewski Problem Set #10 Submit a document with the answers to the following questions along with an Excel workbook with the appropriate computations. Be sure to report the appropriate statistics. 1. A cognitive psychologist was interested in the ability to solve puzzles. They selected 24 college sophomores and matched them on the basis of IQ and assigned them, in groups of four, to one of four puzzle conditions (six blocks of four). The psychologist wants to make sure that all the puzzles are equally difficult. The dependent variable was the amount of time it took for a subject to complete the puzzle. The data are presented below. Were there differences in puzzle difficulty at the .05 level? Make sure to complete a 6-step hypothesis test. Block 1 2 3 4 5 -327872 1 25 25 2 34 38 33 32 36 34 Puzzle 3 31 36 30 41 39 40 4 40 37 32 38 46 39
Chetan
Only typing answer Please explain step by step
The market research department at a manufacturing plant determines that 30% of the people who purchase the plant's product during any month will not purchase it the next month. On the other hand, 40% of the people who do not purchase the product during any month will purchase it the next month. In a population of 1000 people, 100 people purchased the product this month. How many will purchase the product next month and in 2 months? (a) next month _________ people (b) in 2 months ________ people
45 40 5 35 % 10 0 Overweight and Obesity in Adults 1234 India 1234 China 1234 Mexico 193 1234 USA 1 - Men Overweight 2- Men Obese 3- Women Overweight 4- Women Obese A) According to the chart, is it true that being overweight is substantially more prevalent in India than obesity? (True or False) B) According to the chart, is it true that obesity is highly prevalent in China? (True or False) C) According to the chart, is it true that being overweight is substantially more prevalent in India than obesity? (True or False D) According to the chart, is it true that more than 50% of the USA and Mexico MALES are either overweight or obese? (True or False) (Ctrl)