weighted mean
Flashcard
•
Mathematics
•
12th Grade
•
Hard
Wayground Content
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is a weighted mean?
Back
A weighted mean is an average that takes into account the relative importance or weight of each value in a dataset. It is calculated by multiplying each value by its weight, summing these products, and then dividing by the total of the weights.
2.
FLASHCARD QUESTION
Front
How do you calculate the weighted mean?
Back
To calculate the weighted mean, use the formula: Weighted Mean = (Σ (value × weight)) / (Σ weight), where Σ represents the sum of the values.
3.
FLASHCARD QUESTION
Front
What is the significance of weights in a weighted mean?
Back
Weights represent the importance of each value in the dataset. Higher weights indicate that the corresponding value has more influence on the final average.
4.
FLASHCARD QUESTION
Front
If a student scores 90 in a subject with a weight of 0.4 and 80 with a weight of 0.6, what is the weighted mean?
Back
Weighted Mean = (90 × 0.4 + 80 × 0.6) / (0.4 + 0.6) = 84.
5.
FLASHCARD QUESTION
Front
In a grading system, if essays count for 25%, participation for 15%, quizzes for 20%, and final exams for 40%, how do you find the overall grade?
Back
Multiply each score by its weight, sum the results, and divide by the total weight. For example, if scores are 92, 85, 78, and 88, the overall grade = (92×0.25 + 85×0.15 + 78×0.20 + 88×0.40) = 87.5.
6.
FLASHCARD QUESTION
Front
What is the formula for calculating a student's final grade based on different components?
Back
Final Grade = (Score1 × Weight1 + Score2 × Weight2 + ... + ScoreN × WeightN) / (Weight1 + Weight2 + ... + WeightN).
7.
FLASHCARD QUESTION
Front
How do you round a weighted mean to the nearest tenth?
Back
To round to the nearest tenth, look at the hundredths place. If it is 5 or more, round up; if it is less than 5, round down.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple
Others
Already have an account?
Similar Resources on Wayground
10 questions
I Wandered Lonely As A Cloud By William Wordsworth
Flashcard
•
12th Grade
10 questions
Smart Online Shopper
Flashcard
•
KG - University
12 questions
Legal Writing Memo Flashcard
Flashcard
•
KG - University
9 questions
Special Places
Flashcard
•
KG - University
11 questions
Analizing Essay Titles
Flashcard
•
University
7 questions
Past Simple Flashcard
Flashcard
•
University
Popular Resources on Wayground
15 questions
Fractions on a Number Line
Quiz
•
3rd Grade
20 questions
Equivalent Fractions
Quiz
•
3rd Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
54 questions
Analyzing Line Graphs & Tables
Quiz
•
4th Grade
22 questions
fractions
Quiz
•
3rd Grade
20 questions
Main Idea and Details
Quiz
•
5th Grade
20 questions
Context Clues
Quiz
•
6th Grade
15 questions
Equivalent Fractions
Quiz
•
4th Grade
Discover more resources for Mathematics
12 questions
Add and Subtract Polynomials
Quiz
•
9th - 12th Grade
15 questions
Exponential Growth and Decay Word Problems Practice
Quiz
•
9th - 12th Grade
17 questions
Explore Experimental and Theoretical Probability
Quiz
•
7th - 12th Grade
15 questions
Parallelogram Properties
Quiz
•
10th - 12th Grade
18 questions
Solving Systems- Word Problems
Quiz
•
9th - 12th Grade
34 questions
7.4 Review Cubic and Cube Root Functions
Quiz
•
10th - 12th Grade
21 questions
Geometry Chapter 2 Review
Quiz
•
9th - 12th Grade
9 questions
Identifying Parts Of An Expression
Quiz
•
6th - 12th Grade