Question

There are 50 students in ninth grade in a school. Out of 50, 35 students are writing essays.
Find the experimental probability that a randomly selected student would choose to write an essay.
7/8
7/9
7/10
7/11

Answer 1

To find the experimental probability that a randomly selected student would choose to write an essay, you can use the formula for probability:

\[
P(E) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}
\]

In this case:
- The number of students writing essays (favorable outcomes) = 35
- The total number of students = 50

So the probability \( P(E) \) is:

\[
P(E) = \frac{35}{50}
\]

To simplify \( \frac{35}{50} \):

\[
\frac{35}{50} = \frac{7}{10}
\]

Thus, the experimental probability that a randomly selected student would choose to write an essay is \( \frac{7}{10} \).

The correct answer is:

**7/10**