See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
10 questions from this quiz
Symmetrical around the mean
All three are equal
68%68\%68%
95%95\%95%
μ=0\mu = 0μ=0, σ=1\sigma = 1σ=1
Z=X−μσZ = \frac{X - \mu}{\sigma}Z=σX−μ
Probability
Continuous quantities
Variance
Less spread, more bunched around μ\muμ
Select your subjects, and get access to A+ resources today.