1. A student is taking a 40 question multiple choice exam each with 3 answer choices. If a student is just guessing at allthe answers, find the following probabilities:a. He gets less than 10 correctb. He gets at least 30 correctc. He gets more than 10 but at most 15 correctd. The first question he is correct on is the 4th question2. A midterm is normally distributed and has a mean of 80 and a standard deviation of 6 points. What is the minimumgrade needed for the following situationsa. Pass the class if the bottom 8 percent failb. Get an 'A' if the top 10 percent get an 'A'd. Find Q1, Q3, and IQRc. Find the probability that someone gets at least a 90?3. A researcher computed the least-squares regression line of ŷ = 18 - 2.1x where ŷ= the value of a car (in thousands)and x is the number of years since 2010.a. Interpret the slopeb. What is the predicted value of a car in 2013c. Interpret the y-intercept d. Suppose the value of the car in 2015 is $10,000. Calculate the residual.4. Probability of event C is 0.25. Probability of event D is .35. Probability of event C or event D is .4.a. Find the probability of event C and event D both occurring b. Find the probability of C given D occurringc. Find the probability of (Cn D) occurring. d. Find the probability of (C n D²) occurringe. Suppose that C and D are independent. Find the probability of C or D happening.5a. Which way is the data skewed?b. What is the range?c. What is the Interquartile range?d. Assuming there are 200 people, how many people are at least 12 yearsold?

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Answered: 1. A student is taking a 40 question…

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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Suppose you buy five boxes of cereals. In each box is apicure of a famous athlete. 20% of the cereal boxes contain Michael Phelps, 30% Lamar Jackson, and the rest Elena Delle Donne. Estimate the probability that you end up with a complete set of the pictures. Run 20 trials. Mine: randInt(1,100,5) or randInt(1,100,1) ? 1-20 = Michael Phelps 21-49 = Lamar Jackson 50-100 = Elena Delle Donne The question is asking what is the probability that I end up with a complete set of the pictures? Do I do {#,#,#,#,#} for 20 trials or {#} for 20 trials? Thanks
A multiple-choice test consists of 15 questions each with five possible answers ofwhich only one is correct. Suppose one of the students taking the test answers the questions byguessing. What is the probability that he answers at most 3 questions correctly?
A student must take a multiple-choice exam with only oneanswer, the exam consists of 20 questions with 4 answer options eachOne, suppose the student does not prepare for the test and answers therandom.a. Find the probability that the student will win the test.B. How many questions are you expected to answer to get the fifthcorrect answer.
Observe the question below and the two possible solutions. State which solution is correct and give a reason for your choice. For a group of 300 cars the numbers, classified by colour and country of manufacture, are shown in the table. Black Silver WhiteKorea 33 34 35Japan 23 9 24America 16 25 34Germany 19 16 32 One car is selected at random from this group. Find the probability that the selected car is a black or white car manufactured in Korea. Solution 1 P (BUW) = P (B) + P (W) = 33/300 + 35/300 = 68/300 Solution 2 P (BUW) = P (B) + P (W) = 33/102 + 35/102 = 68/102
40 Jennie's teacher told her to select two problems from a list of two C-level problems, five B-level problems, and one A-level problem. If she selected at random, what is the probability that she se- lected two B-level problems?
Tom has a standard set of pool balls. If he were to draw one ball at random, what is the probability that it will be red or yellow? Give your answer in its simplest form.
a quiz for a psychology class consists of ten questions, the questions are multiple choices with five possible answers each with only one correcct answer. if the student did not study and is guessing for all ten questions (x is the number of correct answers a students get correct) A- what is the probability of that student gettting one correct answer? B- what is the probability of that student getting a passing grade (70% or more correct is passing)
Luis is playing a paint ball game. To win, he must capture the flag and choose the correct escape route. The chance that he captures the flag is 62%. The chance that he chooses the correct escape route is 68%. The probability that he does both is 41%. Create a Venn Diagram and determine the probability that: He captures the flag and chooses the correct route He only captures the flag He only chooses the correct route He doesn’t complete either task
Please solve all 3 sub-parts. Do not answer if you can't answer all parts. Show all steps. Analyzing the data of GOT viewers showed that about 40% of viewers were 14 orolder. If 15 GOT viewers are surveyed, find the following probabilities. a. At least 4 of them are 14 or older. b. Exactly 10 of them are 14 or older.c. Less than 5 of them are 14 or older.

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