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Just type whatever you want here for now, and press enter. This is where you type the name of the program you will write.
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The calculator says 'Name' followed by a flashing cursor. Then go to the NEW menu, and press enter. If a room has 50 people in it, there is a 0.970 (97.0%) probability of having at least two people with the same birthday. In order to write a BASIC program on the TI-82, you must first get to the program editor.If a room has 30 people in it, there is a 0.706 (70.6%) probability of having at least two people with the same birthday.If a room has 23 people in it, there is a 0.507 (50.7%) probability of having at least two people with the same birthday.Watch the video below to see how easy it is. The calculator's syntax is pretty intuitive, so let's code the algorithm just the way I did, by just diving right in.
#HOW TO WRITE PROGRAMS ON TI 84 ONLINE MANUAL#
I taught myself without the aid of a manual or even a Google search. Translating this program into the TI-83 requires use of the calculator's syntax. Step twelve: Output A, because it is our answer. Step eleven: Store (1 - F) into a variable called "A." Step eight: Store the result of the calculation from step seven into variable F. Step seven: Perform the following calculation: F*(365 - C)/365 Step five: Create a variable called "F" to store our probability fraction, and initialize it to 1. Step four: Initiate the count variable, C, to 1. Step three: Create a count variable called "C." Step two: Store n in a variable called "N." Step one: Establish n (the number of people in the room). To program our graphing calculator, we need to create a step-by-step procedure that we will turn into code for the TI-83. P( at least one pair of matching birthdays)= 1. P( at least one pair of matching birthdays) = 1 - P( no one in the room of size n has the same birthday) Ignoring leap years, find the probability that a room containing n people has at least two people with the same birthday (same month and day, not year). The result will provide you with a handy program to impress your friends while also teaching you a little about writing programs in the TI-83 graphing calculator.įirst, let's state the problem, and the solution we derived in the earlier post.
#HOW TO WRITE PROGRAMS ON TI 84 ONLINE HOW TO#
In this post, I will show you how to program a Texas Instruments graphing calculator to perform the calculations. In a previous post, I solved a fairly famous probability problem about two or more people having a matching birthday (in a room of size n). Programming the Matching Birthday Problem