Question

A mean average of 80 or greater for five exams is needed for a final grade...

A mean average of 80 or greater for five exams is needed for a final grade of B in a course. Jorge's first four exam grades are 73, 69, 85, an 80. What grade does Jorge need on the fifth exam to get a B in the course? Must Jorge get exactly the grade you calculated? Can he receive a higher or lower grade and still get a B?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

for B grade

mean score >= 80

therefore,

total score >= 80*5

total score >= 400

let grade in 5th exam = G

total score = 73 + 69 + 85 + 80 + G

73 + 69 + 85 + 80 + G >= 400

307 + G >= 400

G >= 93

jorge needs 93 or higher grade in 5th exam

Must Jorge get exactly the grade you calculated?

NO, he needs atleast 93, he must not score less than that

Can he receive a higher or lower grade and still get a B?

He can get B if he scores higher but not if he scores lesser

(please UPVOTE)

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The professor of a Statistics class has stated that, historically, the distribution of final exam grades...
The professor of a Statistics class has stated that, historically, the distribution of final exam grades in the course resemble a Normal distribution with a mean final exam mark of μ=60μ=60% and a standard deviation of σ=9σ=9%. (a) What is the probability that a random chosen final exam mark in this course will be at least 73%? Answer to four decimals. equation editor (b) In order to pass this course, a student must have a final exam mark of at...
A professor determined that the grades on the Statistic Final are normally distributed with a mean...
A professor determined that the grades on the Statistic Final are normally distributed with a mean grade of 68 and a standard deviation of 15. a) If Mohammed had a z score of 1.25, what was his grade? b) Students in the top 12 % receive an A the student what is the lowest grade a student can get and still get an A? c) Students in the bottom 15% will fail the course. What is the cutoff grade a...
# of OpenLab visits Final grade 2 40 8 85 10 80 9 84 15 90...
# of OpenLab visits Final grade 2 40 8 85 10 80 9 84 15 90 7 72 5 50 4 59 8 85 10 70 7 66 7 70 5 63 4 60 4 59 11 79 3 82 9 90 10 82 9 76 14 85 6 73 5 41 4 56 8 80 10 70 7 66 9 88 5 65 4 70 4 62 11 90 Open Lab Visits data. Using data on 33 second-year students...
1. Create a model that calculates the course grade for a student in in a class....
1. Create a model that calculates the course grade for a student in in a class. Suppose the course grade is calculated as 30% Midterm, 30% Final and 40% Homework. As inputs for the model suppose a student had a 79 on the Midterm, a 85 on the Final, and a 90 on their Homework. In a blank cell, label and write the answer to question 1. 2. Answer the following question using Goal Seek, "What grade does a student...
Use the following information for Questions 28-32. Final grades in a class are a weighted average...
Use the following information for Questions 28-32. Final grades in a class are a weighted average of the midterm (25%) and final (75%) exams: G = 0.25M + 0.75F. Each exam has 100 possible points. Suppose the average and standard deviation of scores on the midterm were 71 and 19 respectively, while the values for the final exam were 69 and 23. Suppose further that the correlation coefficient between the two exams is 0.50. 1. What is the mean of...
PROBLEM: A set of final examination grades in an introductory statistics course was found to be...
PROBLEM: A set of final examination grades in an introductory statistics course was found to be normally distributed with a mean of 73 and a standard deviation of 8. Use Excel to determine the following values to 6 (round up) decimal place accuracy. Fill in the following values. 1. Determine the probability of getting a grade that is less than 85.Answer____________________________________ 2. Determine the probability of getting a grade that is greater than 90.Answer__________________________________ 3. Determine the probability of getting...
A study was conducted to determine whether the final grade of a student in an introductory...
A study was conducted to determine whether the final grade of a student in an introductory psychology course is linearly related to his or her performance on the verbal ability test administered before college entrance. The verbal scores and final grades for 10 students are shown in the table below. Student, Verbal Score x, Final Grade y 1 80 77 2 65 98 3 45 96 4 30 60 5 56 64 6 56 73 7 49 84 8 52...
The following 4 parts relate to this scenario and data. A professor wishes to develop a...
The following 4 parts relate to this scenario and data. A professor wishes to develop a numerical method for giving grades. He intends to base the on homework, two tests, a project, and a final. He wishes the final to have the largest influence on the grade. He wants the project to have 20%, each test to have 10%, and the homework to have 20% of the influence on the semester grade. 1. Determine the weights the professor should use...
The following 4 parts relate to this scenario and data. A professor wishes to develop a...
The following 4 parts relate to this scenario and data. A professor wishes to develop a numerical method for giving grades. He intends to base the on homework, two tests, a project, and a final. He wishes the final to have the largest influence on the grade. He wants the project to have 20%, each test to have 10%, and the homework to have 20% of the influence on the semester grade. 1. Determine the weights the professor should use...
The Data A central tenet to being a good instructor, I believe, is to be a...
The Data A central tenet to being a good instructor, I believe, is to be a reflective practitioner of your craft. From time to time I find it to be necessary to review and reflect on my work as an instructor from a grade perspective. On our moodle page you will find a link to a second word document titled “300 Grades”. This data sheet contains both the alphanumeric grade (page 1) and the numerical equivalent (page 2) for every...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT