Regression in TI-84
How to Find Line of Best Fit on TI-84 Calculator
A line of best fit is the line that best “fits” the trend of a dataset.
This tutorial provides a step-by-step example of how to...
Regression in TI-84
How to Perform Logarithmic Regression on a TI-84 Calculator
Logarithmic regression is a type of regression used to model situations where growth or decay accelerates rapidly at first and then slows over time.
For...
Regression in TI-84
How to Perform Exponential Regression on a TI-84 Calculator
Exponential regression is a type of regression that can be used to model the following situations:
1. Exponential growth: Growth begins slowly and then accelerates...
Confidence Intervals in TI-84
How to Find Margin of Error on a TI-84 Calculator
Often in statistics we use confidence intervals to estimate the value of a population parameter with a certain level of confidence.
Every confidence interval takes...
Probability Distributions in TI-84
TI-84: How to Find Expected Value of a Probability Distribution
A probability distribution tells us the probability that a random variable takes on certain values.
For example, the following probability distribution tells us the probability...
Descriptive Statistics in TI-84
How to Find Mean Absolute Deviation on a TI-84 Calculator
The mean absolute deviation is a way to measure the spread of values in a dataset.
It is calculated as:
Mean absolute deviation = (Σ |xi –...
Descriptive Statistics in TI-84
How to Calculate Relative Frequency on a TI-84 Calculator
Relative frequencies tell us how often certain events occur, relative to the total number of events.
For example, the following table shows how many items...
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