A survey of 77 college students was taken to determine the musical styles they liked. Of those, 36 students listened to
rock, 38 to classical, and 38 to jazz. Also, 18 students listened to rock and jazz, 20 to rock and classical, and 19 to
classical and jazz. Finally, 10 students listened to all three musical styles
Construct a Venn diagram and determine the cardinality for each region. Use the completed Venn Diagram to
answer the following questions.
a. How many listened to only rock music?
b. How many listened to classical and jazz, but not rock?
c. How many listened to classical or jazz, but not rock?
d. How many listened to music in exactly one of the musical styles?
e. How many listened to music in exactly two of the musical styles?
f. How many did not listen to any of the musical styles?

A survey of 77 college students was taken to determine the musical styles they liked Of those 36 students listened to rock 38 to classical and 38 to jazz Also 1 class=

Respuesta :

Answer: Attached is a Venn diagram of your problem.

Step-by-step explanation:

Knowing how many likes all three will help. You know that 10 students like all three.

Rock and Jazz only:

16 like rock and jazz while 10 like all three. To get how many like jazz only, subtract 10 from 16.

16-10 = 6

Rock and Classical only:

13 like rock and classical while 10 like all three. To get how many like jazz only, subtract  10 from 13.

13-10 = 3

Jazz and classical only:

12 like jazz and classical while 10 like all three. To get how many like jazz only, subtract 10 from 12.

12-10 = 2

Now with that data you fill up the 4 intersecting areas. To get the outer, just remember that all areas within a circle should add up to the first assumption.

27 rock

24 classical

28 Jazz

All numbers in the rock circle should add up to 27.

All numbers in the classical circle should add up to 24.

All numbers in the Jazz circle should add up to 28.

Rock:

3+10+6+x = 27

19+x=27

x = 27-19

x= 8

Classical:

3+10+2+x = 24

15 + x = 24

x = 24-15

x = 9

Jazz:

10+6+2+x = 28

18 + x = 28

x = 28 - 18

x = 10

In summary: 8 liked only Rock, 9 liked only Classical, 10 liked only Jazz.