**If one student is chosen at random from those who took the exam, find the probability that:**
*Round all answers to 4 decimal places as needed*

**a)The student was a sophomore.**

To find the probability that a randomly chosen student was a sophomore, we use the formula for basic probability:

\[
P(\text{Sophomore}) = \frac{\text{Total Sophomores}}{\text{Total Students}}
\]

From the table:

- Total number of sophomores = \( 156 + 191 + 180 = 527 \)
- Total number of students = \( 399 + 527 = 926 \)

Now calculate the probability:

\[
P(\text{Sophomore}) = \frac{527}{926} = 0.5693
\]

Thus, the probability that the student was a sophomore is **0.5693**.

Do you need more clarification or have any other questions?

Here are 5 related questions:
1. What is the probability that the student was a freshman?
2. What is the probability that the student received a B?
3. What is the probability that a student received an A, given they are a sophomore?
4. What is the probability that the student was a freshman or received a B?
5. What is the probability that the student received a C?

**Tip:** Always ensure that the total number of outcomes is correctly calculated before finding individual probabilities.

If one student is chosen at random from those who took the exam, find the probability that the student was a sophomore. Round all answers to 4 decimal places as needed.

This problem demonstrates how to calculate the probability of selecting a sophomore from a group of students using basic probability formulas. It covers key probability concepts, suitable for high school students in Grades 10-12.

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