Probability Calculator
Computes the integrals and inverse integrals for various continuous distributions, including normal, Student t, F, Chi-square, etc. Plots of distribution functions can also be requested.
Normal
Element Name | Description |
---|---|
Normal distribution | Calculate probability for Normal distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
Two-tailed test | Select this option to specify a two-tailed test. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value z | Specifies the (critical) z value for the computations. |
p-value | Specifies p-value for computations. |
Mean | Specifies value for the mean. |
Standard deviation | Specifies value for standard deviation. |
Beta
Element Name | Description |
---|---|
Beta distribution | Calculate probability for Beta distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
Shape 1, v | shape 1, v |
Shape 2, w | Shape2, w |
Cauchy
Element Name | Description |
---|---|
Cauchy distribution | Calculate probability for Cauchy distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate Value for the respective distribution. |
Two-tailed test | Select this option to specify a two-tailed test. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
Location parameter | Specifies value of location parameter for computations. |
Scale parameter | Specifies value of scale parameter for computations. |
Chi-square
Element Name | Description |
---|---|
Chi-square distribution | Calculate probability for Chi Square distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
df | Degrees of freedom |
Exponential
Element Name | Description |
---|---|
Exponential distribution | Calculate probability for Exponential distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
Lambda | Specifies the value for parameter Lambda. |
Extreme
Element Name | Description |
---|---|
Extreme Value distribution | Calculate probability for Extreme value distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
Location parameter | Specifies value of location parameter for computations. |
Scale parameter | Specifies value of scale parameter for computations. |
F
Element Name | Description |
---|---|
F (Fisher) distribution | Calculate probability for F (Fisher) distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
df1 | Degree of freedom 1 |
df2 | Degree of freedom 2 |
Gamma
Element Name | Description |
---|---|
Gamma distribution | Calculate probability for Gamma distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
shape | Specifies the shape parameter for computations. |
Laplace
Element Name | Description |
---|---|
Laplace distribution | Calculate probability for Laplace distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
Two-tailed test | Select this option to specify a two-tailed test. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
Location parameter | Specifies value of location parameter for computations. |
Scale parameter | Specifies value of scale parameter for computations. |
Log-Normal
Element Name | Description |
---|---|
Log-Normal distribution | Calculate probability for Log-Normal distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
Mu | Specifies value for parameter Mu for computations. |
Sigma | Specifies value for parameter Sigma for computations. |
Logistic
Element Name | Description |
---|---|
Logistic distribution | Calculate probability for Logistic distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
Two-tailed test | Select this option to specify a two-tailed test. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
Location parameter | Specifies value of location parameter for computations. |
Scale parameter | Specifies value of scale parameter for computations. |
Pareto
Element Name | Description |
---|---|
Pareto distribution | Calculate probability for Pareto distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
shape | Shape |
Rayleigh
Element Name | Description |
---|---|
Rayleigh distribution | Calculate probability for Rayleigh distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
Scale parameter | Specifies value of scale parameter for computations. |
Student's t
Element Name | Description |
---|---|
t (Student) distribution | Calculate probability for t (Student) distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
Two-tailed test | Select this option to specify a two-tailed test. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
df | Degrees of freedom. |
Weibull
Element Name | Description |
---|---|
Weibull distribution | Calculate probability for Weibull distribution. |
Inverse | Creates the inverse of the integral; specify a desired p-value (e.g., significance level) to compute the critical variate value for the respective distribution. |
1 - Cumulative p | Set this option to True to compute the (critical) variate value for the specified distribution based on a 1-cumulative-p value, or the 1-cumulative-p value based on a specified (critical) variate value. |
Plots density function | Plots the probability density function. |
Plots distribution function | Plots the distribution function. |
Variate value x | Specifies the (critical) variate value for the computations. |
p-value | Specifies p-value for computations. |
shape | Shape |
Scale parameter | Specifies value of scale parameter for computations. |
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