Where is comma on ti 84

Enter the matrix dimensions: number of rows by number of columns. Input the actual data into the matrix. Input observed data in L1 and expected in L2. Enter L 1 for Observed , and L 2 for Expected. Input the corresponding values. Use 2nd and the number keys to enter the names of the lists. The frequency for each list should be 1. Enter the data in the lists L1 and L2.

Let L1 be the "before" levels and L2 be the "after" levels. Choose option TInterval. Enter L3 for List by pressing 2nd , 3. The frequency of the data Freq is the default value which is 1. Divide 1 by the resulting number of combinations to find the probability of any single combination occurring.

Press L1 2nd , 1 , then insert a comma and press L2 2nd , 2. Input the lower F value , the upper F value , the numerator degrees of freedom , the denominator degrees of freedom. Note: If you are finding a probability from negative infinity or to positive infinity, you can enter a large value such as 10E6 E entered with 2 nd ,. Type your data into the first list, L 1. Select On and the histogram graph, which is the third option. Enter the time variable values in L1 and the measured variable values in L2.

Scroll down to option 1-PropZTest. You have the option to input Data or Stats. Data — If you have the raw data and it is a small enough sample where it is reasonable to enter, you will get a more exact answer using this than the summary statistics.

Stats — Use this option if you were provided summary statistics. Select Yes or No for Pooled. Choose Yes if you are assuming the population variances to be equal.

Choose No if you are not assuming the population variances to be equal. Note that many calculators use an alternate formula for the number of degrees of freedom, so solutions may vary.

Input the area to the left of z. Though we typically separate large numbers into chunks of three digits each, that is not what the comma was designed to do in calculators, and if you try to use it to do that, as shown to the right, your calculator gets confused.

I often tell my students "You are smarter than your calculator" meaning -- it has no idea that commas are used in that way. It thinks you're crazy. So, what is the comma there for then, if not to separate large numbers into chunks of three digits? Here's a handful of reasons the comma is useful, and things you can use it for: An argument separator: the most common use of a comma on a TI or TI is to separate different inputs of a function.

Lots of words here Try typing in gcd , 84 and you'll find that the calculator will give you the greatest common factor or divisor of and Notice because you had two inputs, you had to separate them with a comma. Further right in the menu is randInt 1,6 which will give you a random number between 1 and 6, like rolling a dice. Add a third number in like randInt 1,6,5 and it will give you a list of random numbers, as if you rolled 5 dice, like if math class was really boring and you wanted to play Yahtzee but knew the teacher would be annoyed with the sound of dice on your desk.