Easily visualize normal distribution curve with adjustable parameters. Calculate Probabilities Under the Curve: Input a z-score value or a range of z-scores, and the tool will compute the ...

Where \(X\) is a normally distributed random variable with mean \(\mu\) and standard deviation \(\sigma\). The peak of the curve occurs at \(x=\mu\), and the spread ...

If the probability that a randomly selected person will vote in the next election is 0.39, how would we find the probability that more than half of the people in a sample of 1000 will vote? Since the ...