claudia_lovez_u
New member
- Joined
- Jun 15, 2012
- Messages
- 2
1.a local blood center needs donors and has advertised on the college campus. faculty, staff and students all donated during the drive. many also volunteered to help set up , hand out materials and clean up at the end of the event. there were a total of 500 people surveyed about their involvement that day. two hunded seventeen of them gave blood. one hundred fifty-six helped with setting up and cleaning up, as well as handing out materials. if ninety-three people both helped and donated, find out how many people neiher donated nor helped.
2. A surveye of 85 college students was taken to determine the musical styles they liked. Of those, 31 students listened to rock 39 to classical and 32 to jazz. also 10 students listened to rock and jazz, 16 to rock and classical and 18 to classical and jazz. FInally 6 students listeded 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 listed to only rock?
b.how many listedted to rock and jazz?
c.how many listened to rock and classical
d.how many listened to classical and jazz?
e.how many listened to classical?
f.how many listened to jazz
2. A surveye of 85 college students was taken to determine the musical styles they liked. Of those, 31 students listened to rock 39 to classical and 32 to jazz. also 10 students listened to rock and jazz, 16 to rock and classical and 18 to classical and jazz. FInally 6 students listeded 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 listed to only rock?
b.how many listedted to rock and jazz?
c.how many listened to rock and classical
d.how many listened to classical and jazz?
e.how many listened to classical?
f.how many listened to jazz