Which of the following is an example of print media?
1. a blog
2. a newspaper
3. a magazine's website
4. all of the above
Rolling a number cube twice has 36 possible outcomes. The probability of rolling an even number on the first roll, and then not rolling a 2 on the second roll is 2/5, which means out of all the possible outcomes, this event occurs 2 out of 5 times.
The theoretical probability of rolling a 3 is 1/6 since there is one favorable outcome of rolling a 3 out of the total six equally likely possible outcomes. The experimental probability of rolling a 3 in 450 rolls is 67/450, meaning that out of the 450 rolls, 67 of them resulted in a 3.
There are a total of 12 letters, out of which there are 3 letter “A’s”. Therefore, the probability of drawing an “A” is:
As a fraction: 3/12 or 1/4
As a decimal: 0.25
As a percent: 25%
So, there is a 1/4 chance, 0.25 probability, and 25% likelihood of drawing an "A" from the mixed letters.
2. a newspaper
You roll a number cube twice. Find
P
(
even, then not
2
)
. Write the probability as a fraction in simplest form.
The number cube has 6 equally likely outcomes: 1, 2, 3, 4, 5, or 6.
The probability of rolling an even number on the first roll is 3/6 or 1/2, since there are three even numbers (2, 4, or 6) out of the six possible outcomes.
If an even number is rolled on the first roll, there are now only five possible outcomes on the second roll. However, we want to exclude rolling a 2 on the second roll, since the second roll cannot be a 2.
Therefore, the probability of rolling an even number on the first roll, and then not rolling a 2 on the second roll is:
(1/2) x (4/5) = 4/10 = 2/5
So the probability of rolling an even number on the first roll, and then not rolling a 2 on the second roll is 2/5, or two-fifths.
You roll a number cube twice. Find
P
(
even, then not
2
)
. Write the probability as a fraction in simplest form. in one sentence
The probability of rolling an even number on the first roll, and then not rolling a 2 on the second roll when rolling a number cube twice is 2/5.
You roll a number cube twice. Find
P
(
even, then not
2
)
. Write the probability as a fraction in simplest form.in two sentence
A number cube is rolled 450 times. The number 3 comes up 67 times.
What is the theoretical probability of rolling a 3? Write your answer as a fraction in simplest form.
What is the experimental probability of rolling a 3? Write your answer as a fraction in simplest form.