Find the probability of the following event:
tossing a coin tails up or rolling a number less than 4 on a number cube.
I got 1/2 + 3/6 and got 1.
The answer is 3/4. I don't understand what to do. Please help.
To find the probability of the event, you need to determine the number of successful outcomes (tails up or a number less than 4) and divide it by the total number of possible outcomes.
Let's break it down:
1. Tossing a coin: A coin has 2 possible outcomes - either heads or tails.
2. Rolling a number cube: A number cube (or die) has 6 possible outcomes - the numbers 1, 2, 3, 4, 5, or 6.
Now let's determine the number of successful outcomes:
1. Tossing a coin tails up: This happens 1 out of 2 times, so there is 1 successful outcome.
2. Rolling a number less than 4: There are three numbers less than 4 on a number cube (1, 2, and 3), so there are 3 successful outcomes.
Now, let's calculate the probability:
The total number of possible outcomes is the product of the number of outcomes for each event. In this case, since we have two independent events (coin toss and number cube roll), we multiply the number of outcomes for each event: 2 x 6 = 12.
The probability is the number of successful outcomes divided by the total number of possible outcomes: (1 + 3) / 12 = 4 / 12 = 1/3.
So, the correct answer is 1/3, not 3/4. It seems there was an error in your calculations.