Learn To Be
Open menu
Enroll A Student
Become A Tutor
Partner With Us
Sign In
Close menu
Enroll A Student
Become A Tutor
Partner With Us
Sign in
Timed Test For
Expected value with calculated probabilities
Not ready for a timed test?
Practice this topic instead
Sample Problem
Cecilia has created a new game for her friend, Lyla. Lyla will grab a ball from a bucket with $3$ red balls numbered $1$ through $3$, and another ball from a bucket with $7$ green balls numbered $1$ through $7$. If Lyla pulls an odd numbered ball from both of the buckets, she will win $\$10$. If she pulls an odd numbered red ball from the first bucket, but an even green ball from the second bucket, Lyla will break even. Under any other outcome, Lyla will lose $\$8$. **What is Lyla’s expected value of playing this game? Round your answer to the nearest cent.** $\$$ [[☃ input-number 1]]
What's your name?
Duration
30 seconds
60 seconds (1 minute)
120 seconds (2 minutes)
180 seconds (3 minutes)
300 seconds (5 minutes)