This calculator finds the standardized z-score for any raw value of X, a population mean, and a population standard deviation. A z-score simply tells us…

Hey there. My name is Zach Bobbitt. I have a Masters of Science degree in Applied Statistics and I’ve worked on machine learning algorithms for professional businesses in both healthcare and retail. I’m passionate about statistics, machine learning, and data visualization and I created Statology to be a resource for both students and teachers alike. My goal with this site is to help you learn statistics through using simple terms, plenty of real-world examples, and helpful illustrations.

This calculator automatically finds the interquartile range for a given dataset. Simply enter the comma-separated values of the dataset in the box below and then…

Probability of event A: P(A) Probability of event B: P(B) Probability that event A does not occur: P(A’): 0.7 Probability that event B does not…

t score Degrees of freedom One-tailed or two-tailed hypothesis? One-tailed Two-tailed Significance level 0.01 0.05 0.10 P-value: 0.08088 The result is NOT SIGNIFICANT at p…

Degrees of freedom 1 (numerator) Degrees of freedom 2 (denominator) F-value Probability Level

Z score One-tailed or two-tailed hypothesis? One-tailed Two-tailed Significance level 0.01 0.05 0.10 P-value: 0.38209 The result is NOT SIGNIFICANT at p < 0.05