Question: A multiple-choice test has 27 questions. Each question has 5 possible answers, of which only one is correct. What is the probability that sheer guesswork

A multiple-choice test has 27 questions. Each question has 5 possible answers, of which only one is correct. What is the probability that sheer guesswork will yield exactly 18 correct answers?

₁₈C₅(.2)⁵(.8)¹³

₂₇C₁₈(.2)¹⁸(.8)⁹

₂₇C₁₈(.8)¹⁸(.2)⁹

₂₇C₅(.2)¹⁸(.8)⁹

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Are you available for help on a derivatives test? I will pay more The questions are similar to those attached. Let me know if you understand these concepts If the initial margin is $5,000, the...

Write a literature review for your study. See below for an example of a literature review. Your literature review should provide both analysis and synthesis of previous studies as related to the...

nd he ng ght OW 12 13 14 15 16 LISTING Grade Exam.java 1 public class GradeExam { 2 /** Main method */ 17 PEZZELNE 285 Key DBD CCDAEAD Your program grades the test and displays the result. It...

Selected items (13 to be exact) from a 50-item multiple-choice test given to an undergraduate organizational behavior class are presented in Table 13.4. Look through the test to get a sense of the...

The local Department of Motor Vehicles (DMV) issues new licenses and renews licenses. (See the diagram below.) 48 applicants enter the DMV per hour. All applicants see the receptionist first. The...

The local Department of Motor Vehicles (DMV) issues new licenses and renews licenses. (See the diagram below.) 50 applicants enter the DMV per hour. All applicants see the receptionist first. The...

1.Keeping in mind theAccounting for the Public Interest: A RevenueRecognition Dilemma case: How would thecontract approach under Topic 606 impact the revenue recognition dilemma in the case? 2. Post...

The local Department of Motor Vehicles (DMV) issues new licenses and renews licenses. (See the diagram below.) 50 applicants enter the DMV per hour. All applicants see the receptionist first. The...

Please read attached document and answer question 3. Here is the question as well: 3. Operating cash flow is often referred to as the lifeblood of a firm. The vaccine makers received cash up-front...

2b) Use the formulas for the mean and the standard deviation of a binomial random variable to calculate the mean and the standard deviation of X. ( round answer to the nearest thousandths) 2c)...

Write these numbers in scientific notation by counting the number of places the decimal point is moved. a. 0.000552 b. 1,987 c. 0.00000000887

A web site had 2/7 more hits last month than in the same month of the preceding year. If there were 2655 hits last month, how many were there one year earlier?

Which of the following graphs has exactly 5 edges? (Check all that apply.) Group of answer choices (Section 4.1) Alt text: A graph with five vertices that are all connected to each other by edges....

Oust the Turtle Company has the following balances on December 31, 2020: Cash on hand 4,500.00 Cash in bank A 33,000.00 Cash in bank X 50,000.00 Cash in bank C 822,999.72 Cash on hand includes $ 3....