you need at least 6 decimal places or exact answers. An exact answer (fractions) is recommended on both parts, especially the first part since it will be used for the second question. Baumgartner, Prosser, and Crowell are grading 7 calculus exams on which there is a series of 4 true/false questions. Each question has 2 answer choices. First, what is the probability that a student gets a perfect score (all answers correct) on the exam if they guess randomly with no bias? ●‒‒ What is the probability that there is at least one exam with a perfect score if all 7 students are guessing? ‒‒‒

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 11CYU
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Need help with probability I don't understand.

you need at least 6 decimal places or exact answers.
An exact answer (fractions) is recommended on both parts, especially the first part since it will be used for the second
question.
Baumgartner, Prosser, and Crowell are grading 7 calculus exams on which there is a series of 4 true/false questions.
Each question has 2 answer choices.
First, what is the probability that a student gets a perfect score (all answers correct) on the exam if they guess
randomly with no bias?
●‒‒
What is the probability that there is at least one exam with a perfect score if all 7 students are guessing?
‒‒‒
Transcribed Image Text:you need at least 6 decimal places or exact answers. An exact answer (fractions) is recommended on both parts, especially the first part since it will be used for the second question. Baumgartner, Prosser, and Crowell are grading 7 calculus exams on which there is a series of 4 true/false questions. Each question has 2 answer choices. First, what is the probability that a student gets a perfect score (all answers correct) on the exam if they guess randomly with no bias? ●‒‒ What is the probability that there is at least one exam with a perfect score if all 7 students are guessing? ‒‒‒
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