Answer:
Problem 1: Option A, 1/8
Problem 2: Option A, 1/12
Problem 3: False
Step-by-step explanation:
Problem 1
Step 1: Find the probability of landing on a red
Red → 1/4
Step 2: Find the probability of landing on an A
A's → 3/6 → 1/2
Step 3: Multiply to get the total probability
Red * A's
1/4 * 1/2
1/8
Answer: Option A, 1/8
Problem 2
Step 1: Find the probability of landing on heads
Heads → 1/2
Step 2: Find the probability of landing on a 5
Die → 1/6
Step 3: Multiply to get the total probability
Heads * Die
1/2 * 1/6
1/12
Answer: Option A, 1/12
Problem 3
Step 1: Find the probability of choosing a red or white marble
10 + 5 → 15
15 / 35
0.428...
Answer: False
