Elaine gets quiz grades of 67, 64, and 87. She gets a 84 on her final...

Question

Question

Elaine gets quiz grades of 67, 64, and 87. She gets a 84 on her final exam. Find the weighted mean if the quizzes each count

math Statistics-And-Probability

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Weighted average score

= 67 * 0.15 + 64 * 0.15 + 87 * 0.15 + 84 * 0.55

= 78.9

Option 3 is correct.

Add a comment

Answer 2

Similar Homework Help Questions

Elaine gets quiz grades of 67, 64, and 87. She gets a 84 on her final...

Elaine gets quiz grades of 67, 64, and 87. She gets a 84 on her final exam. Find the weighted mean if the quizzes each count for 15% and the final exam counts for 55% of the final grade. 1) 72.1 2) 75.5 3) 78.9 4) 78.3 Find the best predicted value of y corresponding to the given value of x. Eight pairs of data yield r -0.708 and the regression equation 3 - 55.8 + 2.79%. Also, 5 -...
A student earned grades of 84, 78, 84, and 72 on her four regular tests. She...

A student earned grades of 84, 78, 84, and 72 on her four regular tests. She earned a grade of 78 on the final exam and 86 on her class projects. Her combined homework grade was 87. The four regular tests count for 40% of the course grade, the final exam counts for 30%, the project counts for 10%, and homework counts for 20%. What is her weighted mean grade? Round to one decimal place. Please keep answer private.
a professor grades students on three tests, four quizzes, and a final examination. each test counts...

a professor grades students on three tests, four quizzes, and a final examination. each test counts as two quizzes and the final examination counts as two tests. sara has test scores of 64,84,75. saras quiz scores are 94,87,93,92, her final examination score is 64. use the weighted mean formula to find saras average for the course. round your answer to one decimal place

6. Jessica wants to calculate her grade in her accounting class. She has four test grades...

6. Jessica wants to calculate her grade in her accounting class. She has four test grades (82, 65, 71, and 77) and a homework grade (92). Her highest test grade counts for 25% of her grade, her lowest test grade counts for 15% of her grade, the two remaining tests count for 20% each and her homework grade counts for 20%. What is Jessic weighted average in the class rounded to the nearest whole number?
Please show all work step by step. thank you! Please read the direction in every problem....

Please show all work step by step. thank you! Please read the direction in every problem. Show all your work here. (Round probabilities to 4 decimals.) 1. A student earned grades of 84, 78, 84, and 72 on her four regular tests. She earned a grade of 78 on the final exam and 86 on her class projects. Her combined homework grade was 87. The four regular tests count for 40% of the course grade, the final exam counts for...
The given data is the grades for people in this class. The goal here is to...

The given data is the grades for people in this class. The goal here is to determine the factors that effect student's Grade in the class. 4) Find the mean and median for the men's and the women's Quizzes. Gender Men Women 5) Test the claim that the majority of students at this class are women. F M F F M F F F F M M F F F M F F F F M M F F M...

Dr. B computed descriptive statistics for final grades in her PSY 210 classes at the end...

Dr. B computed descriptive statistics for final grades in her PSY 210 classes at the end of the semester with the following results: min = 52 max = 99 mean = 83 median = 87 standard deviation = 13 If you provided only these descriptive statistics and the fact that grades were normally distributed (no raw data) to someone interested in your findings, what would they be able to conclude about the range of most (roughly 68%) of scores in...
Student stress at final exam time comes partly from the uncertainty of grades and the consequence...

Student stress at final exam time comes partly from the uncertainty of grades and the consequences of those grades. Can knowledge of a midterm grade be used to predict a final exam grade? A random sample of 200 BCOM students from recent years was taken and their percentage grades on assignments, midterm exam, and final exam were recorded. Let’s examine the ability of midterm and assignment grades to predict final exam grades. The data are shown here: Assignment Midterm FinalExam...
The following scores represent the final examination grades for an elementary statistics course:

The following scores represent the final examination grades for an elementary statistics course: 23 60 79 32 57 74 52 70 82 36 80 77 81 95 41 65 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 79 34 67 17 82 69 74 63 80 85 61 Calculate: Stem and leaf Relative frequency histogram Cumulative frequency Sample Mean Sample Median Mode Variance Standard deviation

02 The following scores represent the final examination grades for an elementary statistics course: 23 60...

02 The following scores represent the final examination grades for an elementary statistics course: 23 60 79 32 57 74 52 70 82 36 80 77 81 95 41 65 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 79 34 67 17 82 69 74 63 80 85 61 Calculate: . Stem and leaf ....

Elaine gets quiz grades of 67, 64, and 87. She gets a 84 on her final...

Homework Answers