305Perform the following key operation to display a graph.Jccc6(DRAW)uuuuuNormal distribution probabilityNormal distribution probability calculates the probability of normal distribution datafalling between two specific values.πσ2p = 1 e –dx2 2σ(x – μ)2μab∫ a : lower boundaryb : upper boundaryPerform the following key operation from the statistical data list.5(DIST)1(NORM)2(Ncd)Data is specified using parameter specification. The following shows the meaningof each item.Lower ............. lower boundaryUpper ............. upper boundaryσ ..................... population standard deviation (σ > 0)μ ..................... population meanExecute .......... executes a calculationExample To calculate the normal distribution probability for a specificparameter valueFor this example, we will calculate the normal distributionprobability when lower boundary = – ∞ (–1E99), upperboundary = 36,σ = 2 andμ = 35.-bEjjwdgwcwdfw1(CALC)prob ................ normal distribution probabilityDistribution 18 - 8