contestada

A survey of teenagers found the music preferences listed. Country Jazz Rock Classical New Age Other 12 5 7 6 6 4 If you pick a teenager at random, what is P(rock)? A. B. C. D. 1

Respuesta :

nnn6nnn
7 people chose rock out of 40 people total.
7/40 is .175
The probability is 0.175 and the percent is 17.5%

Answer:

Probability that randomly selected teenager like Rock music is 0.175

Step-by-step explanation:

Given:

Type of musics teenagers like = Country, Jazz, Rock, Classical, New Age , Other

Number of teenagers like Country = 12

Number of teenagers like Jazz = 5

Number of teenagers like Rock =  7

Number of teenagers like Classical = 6

Number of teenagers like New age = 6

Number of teenagers like Other = 4

To find: Probability that randomly selected teenager like Rock music.

We know that,

[tex]Probability=\frac{Number\:of\:favorable\:outcome}{Number\:of\Total\:outcome}[/tex]

Total Number of outcome = Total number of teenagers surveyed.

                                           = 12 + 5 + 7 + 6 + 6 +4

                                           = 40

So, Probability = [tex]\frac{7}{40}=0.175[/tex]

Therefore, Probability that randomly selected teenager like Rock music is 0.175

Otras preguntas