Probability: Survival of a fly that attempt to pass over a spider - BARC Finals

Basic Algebra Review Course (BARC)
Link to BARC: https://mathalino.com/node/18037

LINK TO FINAL EXAM
This is one of the problems in the Final Exam of Basic Algebra Review Course at MATHalino. We suggest you take the exam first before watching this video. Go to https://mathalino.com/node/18159 and click the Take tab to start the exam. Registration is optional.

IN THIS VIDEO:
A spider eats three flies a day. Until he fills his quota, he has an even chance of catching any fly that attempts to pass. A fly is about to make the attempt. What are the chances of survival, given that five flies have already made the attempt today?

SOLUTION TO FINAL EXAM
Equilateral triangles:    • Sum of Areas of Equilateral Triangles Insc...  
Leaps of cat and dog:    • Number of leaps needed for the dog to catc...  
Phone numbers:    • Number of Seven-Digit Phone Numbers for a ...  
Red and black socks:    • Probability: Red and Black Socks in Drawer...  
Steps on escalator:    • Number of Steps On The Escalator: M. Poiro...  
Truth serum:    • Conditional Probability: Innocent Tagged G...  
Taller and heavier husbands:    • Husbands who are taller and heavier than t...  
Substance into a solution:    • Substance Goes Into a Solution at a Consta...  
Car nearly hit me:    • A car nearly hit me! - BARC Finals  
Guessing the exam:    • Probability to correctly guess 25 to 30 it...  
Alcohols to minors:    • Probability: Alcoholic drinks served to mi...  
Snatchers are addicts:    • Probability: Snatchers are Drug Addicts? -...  
Monthly dues of condo:    • Probability: Increase in monthly dues of c...  
Two-stage missile:    • Conditional Probability: Two-stage Missile...  
Arrived early by train:    • A man arrived too early by train and start...  
Triangle from square lot:    • Neighbor ask to buy a triangular area from...  
Unbalanced coin:    • Probability: Unbalanced Coin - BARC Finals  
Two kinds of sherry:    • Mixture Problems: Two kinds of sherry - BA...  
Spider and fly:    • Probability: Survival of a fly that attemp...  

BACKGROUND MUSIC
Fluidscape by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/...
Source: http://incompetech.com/music/royalty-...
Artist: http://incompetech.com/