One instrument that can be used is Normal distribution z score calculator.
Normal distribution calculator (statistics) Normal distribution calculator Enter mean (average), standard deviation, cutoff points, and this normal distribution calculator will calculate the area
Decide mathematic questions
I can help you with math questions.
Figure out math questions
I can help you figure out math questions.
Learn step-by-step
This step-by-step guide will teach you everything you need to know about the subject.
Track Improvement
The track has been improved and is now open for use.
Scan math problem
Scanning a math problem can help you understand it better and make solving it easier.
Deal with math tasks
Math can be daunting for some, but with a little practice it can be conquered!
I've attempted my math course three times and I'm on my 4th attempt now, has been very helpful with my math problems, but for this case it's not. This a superb app. I went from poor to excellent, you will not regret paying for it.