MAT123 Spring 2025 Notes

Comments ...

A Question: if I open the test later today do i still have time until Sunday?

Hi,: A student asked, "I see the information for test 3 and we have time until Sunday. my question is:
if I open the test later today do i still have time until Sunday?"; My reply: it will remain posted "UNTIL NOON ON SUNDAY, 3/23/2025"
You may go to the test as you wish. You may read it. You may print it. But SUBMIT IT ONLY ONCE.; Please submit the test ONLY ONCE.; Go with confidence. Stay safe, A²

Test 3 for 3/21/25 IS NOT DUE UNTIL SUNDAY, NOON 3/23/2025

Hi,: Test 3 is linked below, but, because I still have not finished the two videos, THE TEST IS NOT DUE UNTIL NOON ON SUNDAY, 3/23/2025. You do not need the support material, but, it will still be written but probably not until Friday, 3/21/25.; This page has support material support material for Ch 3 & Ch 4 having to do with TI calculator use and probabilities. It is not necessary, just perhaps useful. But, the page will not be done until tomorrow.; Go with confidence. Stay safe, A²

	Mon, 2/24	3.1 Terminology experiments, sample spaces, axioms of probability, EVENT, Law of Large Numbers, OR, union of outcomes, AND, intersection of outcomes, complement, conditional probability 3.2 Independent & Mutually Exclusive Events independent events, sampling with and without replacement, probabilities using complements, Determine if events are independent and/or mutually exclusive
	Wed, 2/26	3.3 Two Basic Rules of Probability Find probabilities using the Multiplication Rule & Addition Rule 3.4 Contingency Tables Construct two-way tables for multivariate data, Use contingency tables to find conditional and marginal probabilities
	Mon, 3/3	3.5 Tree and Venn Diagrams a) Create Tree and Venn Diagrams to represent a sample space and aid to find probabilities
	Wed, 3/5	4.1 Probability Distribution Function for a Discrete Random Variable Identify the characteristics of a discrete pdf 4.2 Mean or Expected Value and Standard Deviation Calculate and interpret the expected value of a discrete random variable
	Mon, 3/17	4.3 Binomial Distribution Identify the characteristics of binomial experiment and use these to solve applied probability problems construct a bar chart for probabilities of a Binomial random variable (Lab 5)
	Wed, 3/19	Use technology to compute probabilities Recap chapter 3,4 material

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