The compressive strength of samples of cement can be modeled by a normal distribution with a mean of 6000 kilograms per square centimeter and a standard deviation of 100 kilograms per square centimeter.

asked May 18, 2019 45.1k views

3 votes

8.2k points

Please log in or register to add a comment.

4 votes

The probability a sample is within 2 standard deviations of the mean is about 95.45%

Bovium answered May 22, 2019

8.7k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers