Math Problem Statement
Final exam scores in a Math class with large number of students have mean 155 and standard deviation 6.3. Provided the scores of this Final exam have a nearly symmetric/bell-curve distribution, what percent of students score below 136.1 OR above 142.4
Solution
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Statistics
Normal Distribution
Z-scores
Probability
Formulas
z = (X - μ) / σ
Theorems
68-95-99.7 Rule (Empirical Rule)
Properties of Standard Normal Distribution
Suitable Grade Level
Grades 10-12
Related Recommendation
Normal Distribution and Binomial Probability in Final Exam Scores
Normal Distribution: Percent of Students Scoring Between 490 and 590
Analyzing Exam Scores Using Normal Distribution
Probability Calculation for Standardized Test Scores between 26 and 32
Statistical Distribution, Z-score, and Normalization for Exam Results