Question

mary planned to go to a movie or shopping mall or a park or restaurant or hospital. she wants to go with any one of her friends: linda, lisa, maria, or barbara. find the probability that mary went to a park with maria.

options:

• $\frac{1}{10}$
• $\frac{1}{12}$
• $\frac{1}{20}$
• $\frac{1}{9}$

Explanation:

Step1: Determine total outcomes

Mary has 5 places (movie, mall, park, restaurant, hospital) and 4 friends (Linda, Lisa, Maria, Barbara). Total outcomes = 5 * 4 = 20.

Step2: Determine favorable outcome

Favorable outcome: park with Maria (1 outcome).

Step3: Calculate probability

Probability = favorable / total = 1 / 20.

Answer:

$\frac{1}{20}$ (corresponding to the option with $\frac{1}{20}$)