Explore BrainMass
Share

# Normal Probability: English Scores

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Scores are normally distributed with a mean of 70 and a standard deviation of 10. The school has decided to place the top 25% into honors English and the bottom 20% into remedial English. What scores separate the upper 25% and lower 20% of the students from the rest? Please explain with solution.

© BrainMass Inc. brainmass.com October 15, 2018, 9:24 pm ad1c9bdddf - https://brainmass.com/statistics/probability/normal-probability-english-scores-386558

#### Solution Preview

Please see the attachments.

Normal distribution
Scores are normally distributed with a mean of 70 and a standard deviation of 10. The school has decided to place the top 25% into honours English and the bottom 20% into remedial English. What scores separate the upper 25% and lower 20% of the students from the rest? Please explain ...

#### Solution Summary

The solution provides step by step method for the calculation of probability using the Z score. Formula for the calculation and Interpretations of the results are also included.

\$2.19