what was the probability that he or she was a Democrat? (Round your answer to four decimal places.)

In a survey of employees at a fast food restaurant, it was determined that 16 cooked food, 13 washed dishes, 25 operated the cash register, 7 cooked food and washed dishes, 9 cooked food and operated the cash register, 10 washed dishes and operated the cash register, 5 did all three jobs, and 6 did none of the jobs.   How many employees were surveyed?   How many only cooked food?   How many only operated the cash register?   How many washed dishes and operated the cash register but did not cook food?   How many of the employees washed dishes or operated the cash register but did not cook food?   How many of the employees did at least two of these jobs?

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 hundred twenty-one of them gave blood. One hundred fifty-six helped with setting up and cleaning up, as well as handing out materials. If eighty-five people both helped and donated, find out how many people neither donated nor helped. There were respondents who neither donated nor helped. (Type a whole number.)

An online music service surveyed 500 customers and found that 270 listen to hip-hop music, 320 listen to rock, and 160 listen to country. In addition, 140 listen to both rock and hip-hop, 120 listen to rock and country, and 80 listen to hip-hop and country. Finally, 50 listen to all three. Draw a Venn diagram to represent the results of the survey and find the number of customers who: A. Listen to only hip-hop. B. Listen to rock and country but not hip-hop. C. Don't listen to any of these three types of music. D. Don't listen to country music.

A survey of 125 freshmen business students at a local university produced the results listed below. How many students took only music? 30 took English;33 took math;32 took music;14 took English but not math;9 took math and music;12 took English and music;3 took all three

In a class of 15 boys and 10 girls, in how many ways may a committee made up of 3 boys and 2 girls be selected?

After the premiere of the new comedy Bumblebee, moviegoers were asked in a quick poll whether they liked the movie. Out of 100 adults, 65 said they liked the movie, whereas out of 20 teenagers, 14 said they liked the movie. Fill in the blanks below to make the most reasonable statement possible. At the movie premiere, (Choose one) ▼moviegoers liked the movie more. That is because only % disliked the movie, whereas % of the (Choose one) v moviegoers disliked the movie.

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows: 32   said they drove alone. 33   rode in a carpool. 38   rode public transportation. 9   used both carpools and public transportation. 9   used both a carpool and sometimes their own cars. 10   used buses as well as their own cars. 5   used all three methods. How many used none of the above-mentioned means of transportation? students

A teacher had chooses 3 of 22 students to help clean the room after school. In How many ways can the students be selected?

600 students at Drew High School were surveyed. 269 of them were males. 455 of the students' wear jewelry, and 300 of the students that wear jewelry are females.