S.3.a
Understand and use terminology and symbols of probability.
Example Problems
A donut shop's donuts sold per hour are modeled below.
Based on this data, what is the probability that at least 1 donut is sold?
| Donuts Sold | Probability |
|---|---|
| 0 | |
| 1 | |
| 2 |
Based on this data, what is the probability that at least 1 donut is sold?
A boutique's scarf sales per hour are modeled below.
Based on this data, what is the probability that more than 1 scarf is sold?
| Scarves Sold | Probability |
|---|---|
| 0 | |
| 1 | |
| 2 | |
| 3 |
Based on this data, what is the probability that more than 1 scarf is sold?
A bike store's mountain bike sales per day follow this model.
Based on this data, what is the probability that more than 1 mountain bike is sold?
| Mountain Bikes Sold | Probability |
|---|---|
| 0 | |
| 1 | 0 |
| 2 | |
| 3 |
Based on this data, what is the probability that more than 1 mountain bike is sold?

1-on-1 AI tutoring aligned to S.3.a. Instant help for students, real-time insights for teachers.
Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.
Free for teachers, forever →