Notes from Dr. Borkosky

can someone help me out and answer this two questions :P, Below is a graph modeling the amount of sugar required to make Grandma’s special chocolate chip cookies. The observation in the student’s answer (T or F) for each question. 1. Find the probability that at most 10 offer such courses.f.

So we're just do 1/2 to the 10th which will end up giving us one out of 1024.

So that's the chance that they get all 10 of them correctly. observation is the students answer (T or F) for each question. Anonymous. A student randomly guesses the answers to a four question true-or-false quiz. Question: A Student Randomly Guesses On 10 True Or False Questions.

How many dozen cookies will she be able to make? What is the probability that... See all questions in Theoretical and Experimental Probability. List the values that $X$ may take on.c. Is it more likely that three or that four dice will show a one? Find the probability that there is at least one correct answer. I'm not sure what to, Suppose that we have a box that contains two coins: A fair coin: P(H)=P(T)=0.5 . Find each probability.$P(\text { exactly } 4 \text { correct })$. You can specify conditions of storing and accessing cookies in your browser. possibility of 5 right or 5 wrong because there is only two possible outcomes Find the probability that the student passes the quiz with a grade of at least 70 percent of the questions …

The observation is the student’s answer for each question. You must be logged in to bookmark a video.

A student randomly guesses on 10 true or false questions. A student randomly guesses the answers to a four question true-or-false quiz. Use the binomial model to determine the probability that the student gets 5 out of the 10 questions right. Probability of at least one correct answer: 1023/1024 Probability of exactly one correct answer: 5/512 The probability of an event occurring can be calculated as "Number of ways the event can occur"/"Total possibilities" As there are two possible results for each of the ten questions, there are 2^10 = 1024 possibilities total.

Justify your answer numerically. A test consists of 10 true/false questions. Give the distribution of $X . Probability of at least one correct answer: #1023/1024#, Probability of exactly one correct answer: #5/512#, The probability of an event occurring can be calculated as, #"Number of ways the event can occur"/"Total possibilities"#. List the values that $X$ may take on.c.

Thus, the probability of getting exactly one correct answer is #10/1024=5/512~~0.010#, 23377 views

All right.

Thank you! Find the probability that all six dice show a one.f.

A student takes a 10 question multiple choice exam and guesses on each question Each question has five choices What is the probability of getting at least 6 correct out of the ten questions? What is the probability that the student gets exactly 7 correct? b)Is getting exactly 10 questions, A 50-question true-false exam is given.

Consider an unprepared student who randomly guesses on each question.

The observation is the student’s answer for each question. How many are expected to attend their graduation?e. In your solution, please be sure to show the exact steps you used to arrive at, A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. If the student guesses on each questions what is the probability that the student will pass the test?---Binomial Problem with n = 10 and p = 1/2---P(8= x = 10) = 1 - P(0= x =7) = 1 - binomcdf(10,0.5,7) = 0.0547.. ===== Our educator team will work on creating an answer for you in the next 6 hours. A student randomly guesses the answers to a 10 question true or false quiz. How many dozen cookies can Grandma make if she has no sugar?

And explain to me how they got the answer?

A student randomly guesses on 10 true or false questions. If 60 or more correct is necessary to pass, what is the probability that a student will pass by random guessing? When answering a question on a multiple choice test, a student is given 5 choices, one of which is correct.

For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 70 %.

Conditioned, a student takes a true false test that has 13 questions and guesses randomly at each answer.

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Of interest is the number of dice that show a one.a. Suppose that a bike rents for $4 plus $1.50 per hour. A student guesses on all ten answer. Find the probability that the student guesses more than 75 percent of the questions correctly. Here, the total observation r trials, n = 10, The probability of getting a right answer, p =, Since, the probability of not getting a right answer, q = 1 - p = 1- 0.5 = 0.5. The test is so designed that the choices are very close and the probability of getting the correct answer, when you know the material, is $0.6 .$ In a class where $70 \%$ of the students are well prepared, a randomly chosen student answers the question correctly. One question is true-false and the other is multiple .

What is the probability of picking a... A museum worker randomly displays 6 historical writings in a row.

Guessing on a Test An exam has ten true-false questions. .50^10 questions = .0009765625 rounded = .0009777 I don't have an account. •

Find out more about how we use your information in our Privacy Policy and Cookie Policy. Find each probability.$P(\text { at least } 3 \text { correct })$, A student guesses at all 5 questions on a true-false quiz. 4) For 80 miles traveled in 4 hours select the unit rate. There is some slight ambiguity in the wording of the question, so we will address both interpretations.

am and returned the bike at 3:00 pm.

Simple Interest. a) 80 miles 4 hours b) 1 mile 4 hours c) 20 miles1 hour d) 4 mile Find the probability that six do not use the foil as their main weapon.f.

Give the distribution of $X$d. Show all your steps. X \sim$d.

a)What is the probability that the student selects at least 6 correct answers? To calculate the probability, then, we only need to know how many ways the student can get one correct answer. Use numbers to justify your answer numerically and answer in a complete sentence. We are interested in the number of fencers who do not use the foil as their main weapon.a. Prisana guesses at all 10 true/false questions on her history test.

either coin is chosen with probability 1/2 , and tossed twice.

How many different meals can be made by selecting one item from each course. At the Fencing Center, 60 percent of the fencers use the foil as their main weapon.

A student takes a 32-question multiple choice exam, but did not study and randomly guesses each answer.

• So we're gonna have a 1/2 chance that he gets one, right? To pass the test a student must answer at least eight questions correctly. that prob would be (1/2)^10 = 1/1024 On average, how many schools would you expect to offer such courses?e. Click to sign up.

Find each probability.$P(\text { at most half correct })$, Prisana guesses at all 10 true/false questions on her history test.

Your rented a bike to ride around Central Park in New York City, you picked up the bike at 11:00

More than 96 percent of the very largest colleges and universities (more than 15,000 total enrollments) have some online offerings. Suppose that a quiz consists of 20 True-False questions. Anonymous. You can change your choices at any time by visiting Your Privacy Controls. How much did you bike rental cost? Find the probability that the student passes the quiz with a grade of at least 70 percent of the questions … A group of 22 graduating students is randomly chosen.a. A student taking a midterm exam in Ancient History comes to two questions pertaining to a lecture that he missed, and so he decides to take a random guess on both questions. How do you determine the theoretical probability of rolling a five on a die? Grandma has 1 remaining cup of sugar. Question 296701: A) A test consists of 10 true and false questions. To pass the test a student must answer at least eight questions correctly.

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