Question

4. Look at picture

What is the probability of a randomly selected person being a teacher and preferring to use a Mac

Answer 1

The probability of a randomly selected person being a teacher and preferring to use a Mac is 150/500, simplifying to 3/10. Therefore, the correct option is C. 150/500.

The probability of a randomly selected person being a teacher and preferring to use a Mac is given by the ratio of the number of teachers who prefer Macs to the total number of people surveyed.

`\[ \text{Probability} = \frac{\text{Number of teachers who prefer Macs}}{\text{Total number of people surveyed}} \]`

From the table:

Number of teachers who prefer Macs = 150

Total number of people surveyed = 500

So, the correct answer is:

`\[ \text{Probability} = (150)/(500) \]`

Therefore, the answer is:

C. 150/500