Question

Joel has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Joel's Jumble has 2 classical songs, 13 rock songs, and 5 rap songs on it. What is P(rock song or rap song)?

Answer 1

Answer:

$\text{Probability(rock song or rap song)}=\frac{9}{10}$

Step-by-step explanation:

Given : Joel has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Joel's Jumble has 2 classical songs, 13 rock songs, and 5 rap songs on it.

To find : What is P(rock song or rap song)?

Solution :

Joel's Jumble has 2 classical songs, 13 rock songs, and 5 rap songs on it.

Total number of songs = 2+13+5=20

$\text{Probability}=\frac{\text{Favorable outcome}}{\text{Total number of outcome}}$

$\text{Probability(rock song)}=\frac{13}{20}$

$\text{Probability(rap song)}=\frac{5}{20}$

$\text{Probability(rock song or rap song)}=\text{Probability(rock song)}+\text{Probability(rap song)}$

$\text{Probability(rock song or rap song)}=\frac{13}{20}+\frac{5}{20}$

$\text{Probability(rock song or rap song)}=\frac{13+5}{20}=\frac{18}{20}$

$\text{Probability(rock song or rap song)}=\frac{9}{10}$

Answer 2

Using the probability concept, it is found that:

• P(rock song or rap song) = 0.9.

What is a probability?

• A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

• Joel has a total of 2 + 13 + 5 = 20 songs.

• Of those, 18 are either rock or rap.

Hence:

$p = \frac{18}{20} = 0.9$

Then:

• P(rock song or rap song) = 0.9.

You can learn more about the probability concept at https://brainly.com/question/15536019