Question 2:
You want to open a business near your school. You know that 7 out of 20 students buy slurpees every day. If your high school has 700 students, how many slurpees can you expect to sell every day? Every week for a 5 day a week 

Let's solve the revised question where the probability is adjusted to 7 out of 20 students.

### Question 2 (Revised):
**You want to open a business near your school. You know that 7 out of 20 students buy slurpees every day. If your high school has 700 students, how many slurpees can you expect to sell every day? Additionally, how many slurpees can you expect to sell every week if there are 5 school days in a week?**

#### Solution:

1. **Daily Sales Calculation:**
   - Probability that a student buys a slurpee = \(\frac{7}{20}\)
   - Total number of students = 700

   The expected number of slurpees sold each day:

   \[
   \text{Expected Number of Slurpees per Day} = \left(\frac{7}{20}\right) \times 700 = 0.35 \times 700 = 245
   \]

   **Daily Sales:** 245 slurpees

2. **Weekly Sales Calculation:**
   - Number of school days in a week = 5

   The expected number of slurpees sold each week:

   \[
   \text{Expected Number of Slurpees per Week} = 245 \times 5 = 1225
   \]

   **Weekly Sales:** 1,225 slurpees

---

Would you like further details or have any other questions?

### Related Questions:
1. How would the weekly sales change if the school had 6 days in a week instead of 5?
2. What would the daily sales be if the probability was 9 out of 20 instead of 7 out of 20?
3. How do you calculate the weekly sales if there are different probabilities on different days?
4. How does an increase in the number of students affect the expected sales?
5. What is the impact on weekly sales if the probability drops to 5 out of 20?
6. How would the expected sales change if 10% of students stop buying slurpees?
7. What if each student buys 2 slurpees instead of 1? How does that affect the expected sales?
8. How would you calculate monthly sales based on the weekly sales?

### Tip:
Always make sure to clarify whether you are dealing with daily, weekly, or other time-based calculations when determining expected sales. This ensures accurate projections for your business.

Learn how to calculate expected daily and weekly slurpee sales near your school using probability. Understand the formula for expected value and apply it to predict sales based on student buying habits.

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