CASTI-89 TITANIUM · CALC89
randNorm(
Returns a random number from a normal distribution, or a list of them.
Syntax
randNorm(μ, σ[, #Trials])
- Group
- Probability
- Arguments
- Takes the mean μ, the standard deviation σ and an optional number of trials.
- Availability
- Included
Example
| Input | Result |
|---|---|
| dim(randNorm(0,1,4)) | 4 |
Typing dim(randNorm(0,1,4)) on the home screen and pressing ENTER returns 4.
Keystrokes on the TI-89 Titanium
2NDMATH1▶▶6
The same key sequence inserts randNorm( in Calc89, and the AI tutor shows it step by step on the on-screen keypad.
Related commands
- randSamp(Draws a random sample of elements from a list.
- RandSeedSets the seed of the random number generator, so a sequence of random results can be repeated exactly.
- nCr(Returns the number of combinations, the ways to choose r items from n when order does not matter.
- nPr(Returns the number of permutations, the ways to arrange r items chosen from n when order matters.
- rand(Returns a random number between 0 and 1, or a list of such numbers.
- randBin(Returns a random number of successes from a binomial distribution, or a list of them.
- randInt(Returns a random integer between two bounds, or a list of them.