How to calculate percentages on a TI-89 for a normal probability distribution?

  • Context: Undergrad 
  • Thread starter Thread starter sublime
  • Start date Start date
Click For Summary
SUMMARY

The discussion focuses on calculating percentages for a normal probability distribution using the TI-89 calculator. A user inquires about determining the percentage of data above a specific value, given a normal distribution N(80,5). The recommended method involves numerically evaluating the integral of the normal distribution from the desired value to a high limit, such as 100, as there is no direct function for this calculation on the TI-89.

PREREQUISITES
  • Understanding of normal probability distributions
  • Familiarity with the TI-89 calculator functions
  • Knowledge of integral calculus
  • Basic statistics concepts, including mean and standard deviation
NEXT STEPS
  • Learn how to use the TI-89 for numerical integration
  • Study the properties of normal distributions, specifically N(μ,σ)
  • Explore statistical functions available on the TI-89
  • Research methods for calculating cumulative distribution functions (CDF)
USEFUL FOR

Students, educators, and professionals in statistics or mathematics who require practical applications of the TI-89 for calculating probabilities in normal distributions.

sublime
Messages
13
Reaction score
0
I have a ti-89, does anyone know how to calculate percentages of the normal model on it? I am not sure what the function is, and using the table in the back of my book is a pain. The problem's I mean are, for example-
given N(80,5) what percentage of the data is above 92 given the information fits a normal probability distribution. note i don't have the 89 titanium so i may not have certain programs. Thank you
 
Physics news on Phys.org
I don't see a function for that immediately. You can always just ask it to numerically evaluate the integral of the normal distribution from whatever value you want to some high value like 100.
 

Similar threads

What's the difference between Ti-89 and Ti-92 graphing calculators?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Adding random numbers: Tolerance analysis
  • · Replies 11 ·
Replies
11
Views
4K
Undergrad Parameters of a distribution of a physical variable
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Relating Moments from one Distribution to the Moments of Another
  • · Replies 7 ·
Replies
7
Views
2K
MHB What is the Probability of Success in Comparing Normal Distributions?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Error bars in Excel (standard deviation, standard error, percentage)
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Finance: does the volatility of a stock follow a certain distribution?
  • · Replies 24 ·
Replies
24
Views
4K
Undergrad Function to find the probability distribution of a stock price
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Does the generalized gamma distribution have a mgf?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Measurement for uncertainty in nonlinear model
  • · Replies 4 ·
Replies
4
Views
2K