var fDesc=new Array(); fDesc[0] = "As the name suggests, "Probability Calculator" is an easy-to-use probability calculator. Using it you can easily pick one of 40 different probability distributions, calculate, plot and manipulate it's:

probability density function (pdf),
cumulative density function (cdf),
survival function,
hazard function,
cumulative hazard function

For each distribution, a point percent function (ppf) for arbitrary probability (p) can also be calculated. In addition, distribution first four moment estimates are also calculated (mean, variance, skewness, and kurtosis)."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }