A statistics problem
The scores on a biology exam were normally distributed with a mean of $71$ and a standard deviation of $9$. A failing grade on the exam was anything $2$ or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed?
Mona Vinci
39
Join Matchmaticians Affiliate Marketing
Program to earn up to a 50% commission on every question that your affiliated users ask or answer.
- undefined
- 1078 views
- $3.00
Related Questions
- Proper Test Selection for Repeated Interval Data Collection?
- stats- data analysis
- Mathematical modeling
- Finding two importance functions
- Ridge Regression for Panel Data Analysis
- Statistical analysis on a 2 dimensional data set
- Sample size calculation - single mean method
- Assess team win rate by combining individual win rates?
