例题 P(Z<−0.25) P(Z>−1.02) P(−2.55<Z<−0.09)
The standard normal distribution, also called the z-distribution, is a special normal distribution where the mean is 0 and the standard deviation is 1.Any normal distribution can be standardized by converting its values into z scores. Z scores tell you how many standard deviations from the mean...
Standard Distribution is broadly used in detecting the probabilities of score occurrence within normal distribution and which can be compared with the normal distribution points. This is a very useful tool that is frequently used in the Statistical Department in determining several aspects from different...
This calculator will tell you the one-tailed (right-tail) area under the standard normal curve, given a Z-score (i.e., the one-tailed probability from the z-score to positive infinity). Please enter the necessary parameter values, and then click 'Calculate'. ...
Use this simple z-Score calculator. Solve for probability, percentile and standard normal distribution curve area. Enter to learn with graphs and plots.
This calculator will compute the cumulative distribution function (CDF) for the standard normal distribution (i.e., the area under the standard normal distribution from negative infinity to x), given the upper limit of integration x. Please enter the necessary parameter values, and then click 'C...
Step 1: Enter Your Data Set into the Calculator First, enter your data points or numbers, separated by commas. Step 2: Select the Correct Standard Deviation Now, depending on whether you want to calculate the population standard deviation or the sample standard deviation, click on the “Populat...
Place gel for 20-30 min in staining solution made up with 0.25% antibodies from commercial or non-commercial suppliers (e.g. the (w/v) Coomassie Brilliant Blue R-250 dissolved in a solution 5:5:1 Developmental Studies Hybridoma Bank at the University of Iowa, (v/v) of ethanol, ddH2O...
This calculator will tell you the two-tailed area under the standard normal curve, given a Z-score (i.e., the two-tailed probability from +/- the Z-score to infinity on both tails of the distribution). Please enter the necessary parameter values, and then click 'Calculate'. ...