Expected Value (Q2d)
Time for the tabular approach to finding the expected value of x. In other words, I use a table to keep track of my calculations.
Remember to make use of the order of operations:
- (B)rackets … (no operations within brackets here)
- (E)xponents … (no exponents here)
- (D)ivision … (no division here)
- (M)ultiplication … Multiply each x by its corresponding P(x)
- (A)ddition … Add up each xP(x) in the column to get ∑xP(x)
- (S)ubtraction … (no subtraction here)
NOTE: The order of division and multiplication can be switched, as well as addition and subtraction
ALSO NOTE: This order is sometimes expressed as P.E.M.D.A.S.
- (P)arentheses
- (E)xponents
- (M)ultiplication
- (D)ivision
- (A)ddition
- (S)ubtraction
Test your understanding:
ADMS 2320 – Test #2 Prep
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Test #2: Solved Past Tests
Test #2: Cheatsheet
Test #2: Chapt. 5, 7 – 10 Lessons
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Test #2: Solved Past Tests
Test #2: Cheatsheet
Test #2: Chapt. 5, 7 – 10 Lessons
Final: Solved Past Finals
Final: Cheatsheet
Final: Chapt. 11 – 17 Lessons
Fall 2023 Semester Access
ADMS 2320 – Full Course Bundle
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Test #1: Solved Past Tests
Test #1: Cheatsheet (Free)
Test #1: Chapt. 1 – 4 (Free)
Test #1: Chapt. 6 Lessons
Test #2: Solved Past Tests
Test #2: Cheatsheet
Test #2: Chapt. 5, 7 – 10 Lessons
Final: Solved Past Exams
Final: Cheatsheet
Final: Chapt. 11 – 17 Lessons
Fall 2023 Semester Access