Question

In this class, one of your 4 test scores is dropped. On the first three tests,...

In this class, one of your 4 test scores is dropped. On the first three tests, you have the following scores: 77, 34, and 95. What score do you need on the next test to raise your average (incorporating the dropped test) to 75?

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

Homework Answers

Answer #1

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
A chemistry class had two tests. On the first test the mean score was 70 with...
A chemistry class had two tests. On the first test the mean score was 70 with a standard deviation of 10. On the second test the mean score was 60 with a standard deviation of 15. The correlation coefficient between the scores of the two tests was r = 0.6. We run a regression analysis with the first test score as the independent variable and the second test score as the dependent variable. We use the result to estimate the...
In your biology class, your final grade is based on several things: a lab score, scores...
In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the test. There are 100 points available for each score. However, the lab score is worth 20% of your total grade, each major test is worth 22.5%, and the test is worth 35%. Compute the weighted average for the following scores: 96 on the lab, 78 on the first major test, 66 on the second major...
After six biology tests, Ruben has a mean score of 77. What score does Ruben need...
After six biology tests, Ruben has a mean score of 77. What score does Ruben need on the next test to raise his average (mean) to 79?
In a class at a major university, three tests are given during the semester. At the...
In a class at a major university, three tests are given during the semester. At the beginning of the semester, there are x students in the class. Every student in the class takes the first test, and the average on the first test is 72%. After the first test, 20% of the students drop the class. Every student remaining in the class takes the second test, and the average on the second test is 75%. After the second test, 248...
Sample scores from four different statistics class sections are shown below. Run an ANOVA test on...
Sample scores from four different statistics class sections are shown below. Run an ANOVA test on them and answer the following questions: Class 1 Class 2 Class 3 Class 4 95 79 77 81 99 68 91 96 75 84 84 68 76 78 84 89 82 74 75 78 97 93 82 75 93 95 82 88 83 88 85 98 86 95 96 59 What conclusion can we make about the hypothesis test?
Your class has just taken their first examination for this course. A sample of 11 scores...
Your class has just taken their first examination for this course. A sample of 11 scores out of the 15 students enrolled in this class shows the following in percentages: 80, 40, 90, 30, 50, 80, 60, 20, 45, 75, and 95? (a)Based on the information above, how well do you think your entire class performed in this examination? Justify your answer. (b)Can you also estimate a possible percentage range of your own exam scores if they were not among...
Your professor gives one of two types of exams, hard tests and INSANELY hard tests. •...
Your professor gives one of two types of exams, hard tests and INSANELY hard tests. • 60% of the time he gives insanely hard tests, 40% of the time he gives hard tests • Hard tests have an average score of 70 and a standard deviation of 10. • Insanely hard tests have an average score of 50 and a standard deviation of 20. • Both types of tests produce normally distributed scores (a) What is the average score on...
Professor Cramer determines a final grade based on attendance, two papers, three major tests, and a...
Professor Cramer determines a final grade based on attendance, two papers, three major tests, and a final exam. Each of these activities has a total of 100 possible points. However, the activities carry different weights. Attendance is worth 6%, each paper is worth 10%, each test is worth 16%, and the final is worth 26%. (a) What is the average for a student with 77 on attendance, 86 on the first paper, 68 on the second paper, 63 on test...
The test-retest method is one way of establishing the reliability of a test. The test is...
The test-retest method is one way of establishing the reliability of a test. The test is administered, and then, at a later date, the same test is re-administered to the same individuals. The correlation coefficient is computed between the two sets of scores. The following test scores were obtained in a test-retest situation. (Round your answers to two decimal places.) First Score 75 87 60 75 98 80 68 84 47 72 Second Score 71 91 51 76 93 77...
lucy got a score of 75 from her stats class. Assuming the scores of her class...
lucy got a score of 75 from her stats class. Assuming the scores of her class formed a normal distribution and had a mean of 60 and a standard deviation of 5. a. What is Lucys percentile rank? b. How would you explain her percentile rank to your grandmother? c.Lucy's history class also has a normal distribution on the first test(M=70, S=10) and her score was 75 too. What class did she do relatively better or do you think she...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT