1. How to Find Maximum Value on Stat Plot TI-84

Have you ever come across a situation where you are looking for the maximum value from a Stat Plot in your TI-84 calculator and are unsure how to do it? This task is incredibly easy to achieve if you know a few simple steps. By using a combination of the “TRACE” button and the arrow keys, you can quickly find the highest point on your Stat Plot and view its coordinates.

Once you have selected the Stat Plot that you wish to examine, press the “TRACE” button. This will prompt a yellow crosshair to appear on the plot. Use the arrow keys on your calculator to navigate the crosshair to the point that you believe is the maximum. To move the crosshair incrementally, use the up and down arrow keys. If you want to make larger or smaller jumps, use the left and right arrows. As you move the crosshair, the coordinates of the point will be displayed at the bottom of the screen.

If you are unsure whether the point you have selected is the maximum, you can use the “ZOOM” function to zoom in on the plot for a closer look. To zoom in, press the “ZOOM” button followed by the “+” key. You can also use the “WINDOW” function to adjust the axes of the plot if needed. Once you have zoomed in, carefully move the crosshair around to pinpoint the exact maximum value. When you are satisfied with your selection, press the “ENTER” key to view the coordinates of the maximum point and record them if necessary.

Accessing the Stat Plot Menu

Accessing the Stat Plot menu on a TI-84 graphing calculator is a straightforward process that involves navigating through the calculator’s main menu and selecting the appropriate options. Here’s a detailed guide on how to do it:

1. Turn on the TI-84 calculator and press the [2nd] key followed by the [Y=] key to access the Stat Plot menu. This key combination brings up a list of options related to statistical data and plots.

2. Use the arrow keys to navigate through the Stat Plot menu and select the option you need. The most common options include Plot1, Plot2, and Plot3, each representing a different statistical plot on the calculator’s screen.

3. Once you’ve selected the desired plot, use the arrow keys to highlight the “On” option and press [ENTER] to enable the plot. This action will display the statistical plot on the calculator’s screen, allowing you to visualize the data and perform various statistical calculations.

Here’s a table summarizing the key combinations for accessing the Stat Plot menu and its options:

Key Combination	Function
[2nd] + [Y=]	Opens the Stat Plot menu
Arrow keys	Navigates through the Stat Plot options
[ENTER]	Selects the highlighted option

Using the “Maximum” Function

The “Maximum” function on the TI-84 calculator can be utilized to determine the maximum value of a set of data. This function accepts a list of numbers as input and returns the largest value from the list. To use the “Maximum” function, follow these steps:

Enter the data values into the calculator. You can do this by pressing the STAT button, selecting “Edit,” and entering the values into the “L1” list.
Press the MATH button and select “NUM” from the submenu.
Scroll down and select “Maximum” from the list of options.
Enter the name of the list containing the data values, which is “L1” in this case. Press the ENTER key to execute the function.

The calculator will display the maximum value of the data set, which is the largest value in the list.

Here is an example of how to use the “Maximum” function to find the maximum value of the following data set:

Data Value
5
10
15
20

To calculate the maximum value, press the following keystrokes on the calculator:

STAT → EDIT → ENTER → L1 → ENTER → 5 → ENTER → 10 → ENTER → 15 → ENTER → 20 → ENTER → 2nd → LIST → L1 → ENTER → MATH → NUM → MAXIMUM → ENTER

The calculator will display the maximum value of the data set, which is 20.

Set Default Window Dimensions

To ensure accurate results, it’s essential to set appropriate window dimensions. For most maximum finding tasks, the following dimensions are recommended: Xmin = L1min – 1, Xmax = L1max + 1, Ymin = L2min – 1, Ymax = L2max + 1.

Enable Trace Mode

Trace mode allows you to pinpoint the exact location of the maximum on the graph. Enable it by pressing [2nd] [Trace].

Move Trace to Maximum

[Left] and [Right] arrows to move the trace point along the graph. Stop when the trace point is positioned directly on the maximum value.

Display Coordinates

Press [2nd] [Format] [CoordOn]. This will display the coordinates of the trace point, including the X and Y values of the maximum.

Zoom In on Maximum

To refine the accuracy of the maximum value, zoom in on the area around the trace point. Use the [Zoom In] key ([Window] then arrow key) to magnify the graph.

Disable Trace Mode

Once you have obtained the desired accuracy, disable trace mode by pressing [2nd] [Trace] again.

Record Maximum Value

Note down the X and Y values displayed on the bottom line of the screen. These values represent the coordinates of the maximum point.

Advanced Techniques for Finding Maximums on Stat Plot Ti 84

Method 9: Using Maximum Function

The TI-84 Plus CE has a built-in function called “maximum()” that finds the maximum value of a list or a range of data. To use this method:

1. Enter the data set into the list editor (L1, L2, etc.).

2. Go to the home screen and type “maximum(“.

3. Specify the range of data you want to find the maximum of. For example, to find the maximum of the list L1, type “maximum(L1)”.

4. Close the parenthesis and press “Enter.”

The TI-84 Plus CE will display the maximum value of the specified data set.

Here’s an example table to illustrate the use of the maximum() function:

Data Set	Maximum Value
L1: {1, 2, 3, 4, 5}	5
L2: {-2, 0, 5, -1, 3}	5

Best Practices for Accurate Statistical Calculations

When using Stat Plot on the TI-84 calculator, it is crucial to follow certain best practices to ensure accurate statistical calculations.

Here are some general guidelines to observe:

Input data carefully and verify its accuracy before performing any calculations.
Ensure that the data set is representative of the population being studied.
Consider the sample size and the variability of the data when interpreting results.
Use appropriate statistical tests and procedures to analyze the data.
Interpret results cautiously and avoid making broad generalizations based on limited data.

Additionally, the following specific guidelines can help enhance the accuracy of maximum calculations:

Ensure that the data set is ordered in ascending or descending order.
Locate the largest value in the data set.
Verify that the maximum value is consistent with the overall distribution of the data.

Guidelines for Finding the Maximum on a Stat Plot

To find the maximum on a Stat Plot, follow these steps:

Enter the data into the calculator.
Press the “STAT” button.
Select “Edit” and enter the data into L1.
Press “STAT PLOT” and choose “Plot1”.
Select “On” and choose “Stat” as the type of plot.
Press “GRAPH” to display the plot.
Press the “WINDOW” button to adjust the viewing window if necessary.
Use the arrow keys to navigate to the maximum point on the graph.
Read the x-value corresponding to the maximum point to obtain the maximum value.
Verify the maximum value by examining the data set and identifying the largest value.

How To Find Maximum On Stat Plot Ti 84

1. Press the “STAT” button.

2. Select “1:Edit” and press “ENTER”.

3. Use the arrow keys to highlight the data point that you want to find the maximum for.

4. Press the “VARS” button.

5. Select “1:Maximum” and press “ENTER”.

6. The maximum value will be displayed on the screen.