A student is taking a multiple choice exam in which each question has two choices Assuming that she has no knowledge of the correct answers to any of the questions, she has decided on a strategy in which she will place two balls (marked A and B) into a box. She randomly selects one ball for each question and replaces the ball in the box. The marking on the ball will determine her answer to the question There are seven multiple-choice questions on the exam Complete parts (a) through (d) below a. What is the probability that she will get seven questions comrect? 00076 (Round to four decimal places as needed ) b. What is the probability that she will get at least six questions conect? 0.0625 (Round to four decimal places as needed ) c. What is the probability that she will get no questions comect? 0 0078 (Round to four decimal places as needed) d. What is the probability that she will get no more than two questions comect? Round to four decimal places as needed)

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Just answer part b and d but ASAP
A student is taking a multiple-choice exam in which each question has two choices. Assuming that she has no knowledge of the correct answers to any of the
questions, she has decided on a strategy in which she will place two balls (marked A and B) into a box. She randomly selects one ball for each question and
replaces the ball in the box. The marking on the ball will determine her answer to the question. There are seven multiple-choice questions on the exam Complete
parts (a) through (d) below
a. What is the probability that she will get seven questions correct?
0.0078 (Round to four decimal places as needed)
b. What is the probability that she will get at least six questions comect?
0.0625 (Round to four decimal places as needed)
c. What is the probability that she will get no questions correct?
0 0078 (Round to four decimal places as needed)
d. What is the probability that she will get no more than two questions correct?
(Round to four decimal places as needed)
Transcribed Image Text:A student is taking a multiple-choice exam in which each question has two choices. Assuming that she has no knowledge of the correct answers to any of the questions, she has decided on a strategy in which she will place two balls (marked A and B) into a box. She randomly selects one ball for each question and replaces the ball in the box. The marking on the ball will determine her answer to the question. There are seven multiple-choice questions on the exam Complete parts (a) through (d) below a. What is the probability that she will get seven questions correct? 0.0078 (Round to four decimal places as needed) b. What is the probability that she will get at least six questions comect? 0.0625 (Round to four decimal places as needed) c. What is the probability that she will get no questions correct? 0 0078 (Round to four decimal places as needed) d. What is the probability that she will get no more than two questions correct? (Round to four decimal places as needed)
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