Join our free STEM summer bootcamps taught by experts. Space is limited.Register Here 🏕

Like

Report

Numerade Educator

Like

Report

Problem 24 Easy Difficulty

Suppose your cell phone uses a 4-digit personal identification number (PIN) to lock it from use.
Use probability to explain how someone is unlikely to guess your PIN.

Answer

Discussion

You must be signed in to discuss.

Video Transcript

all right. On the previous question, we talked about how there were 5000 40 possible four digit pin numbers for someone to pick. The exact one that is yours would be one in 5040. Do you think about that as a decimal? That's going to be 0.0 1 98 Or if you think of it as a percent, that is 0.0, removing over 0.198%. You're talking about a probability that someone guesses your pin them.

University of Louisville
Top Algebra Educators
GH
Grace H.

Numerade Educator

Anna Marie V.

Campbell University

Heather Z.

Oregon State University

Kayleah T.

Harvey Mudd College