The 67 students in a classical music lecture class were polled, with the results that 37 like Wolfgang Amadeus Mozart, 37 like Ludwig von Beethoven, 34 like Franz Joseph Haydn, 14 like Mozart and...

After leaving the polls, many people are asked how they voted. (This is called an exit poll.) Concerning Propositions A, B, and C, the following information was obtained: 296 people voted yes on A,...

After leaving the polls, many people are asked how they voted. (This is called an exit poll.) Concerning Propositions A, B, and C, the following information was obtained: 296 people voted yes on A,...

30 people say there are 20 students in this class 20 people say there are 10 students in this class 40 people say there are 30 students in this class How many students are in this class...

30 people say there are 20 students in this class 20 people say there are 10 students in this class 40 people say there are 30 students in this class how many students are in this class...

Of those students who watched tv on only one of these days, 13 chose Monday, 6 chose Tuesday, and 6 chose Wednesday.  Every student watched tv on at least one of these days, and 11 students watched...

The 64 students in a classical music lecture class were polled, with the results that 37 like Wolfgang Amadeus Mozart, 36 like Ludwig von Beethoven, 30 like Franz Joseph Haydn, 14 like Mozart and...

A middle school counselor, attempting to correlate school performance with leisure interests, found that of a group of students, 32 had seen Movie A, 26 had seen Movie B, 25 had seen Movie C, 15 had...

draw the Venn diagram using following data, where E is the universal set.   n(A)=15     a(B)=25       n(A ∩ B)=5       ...

Researchers interviewed a number of people. Of all the respondents, 228 think Hollywood is unfriendly toward religion, 150 think the media are unfriendly toward religion, 171 think scientists are...

Draw a Venn diagram and use the given information to fill in the number of elements in each region. n(A)=17 , n(A ∩ B ∩ C )=6 , n(A ∩ C )=14 , n(A ∩ B′ )equals=9 , n(B ∩ C )equals=10 , n(A′...

100 students were interviewed 28 took PE 31 took BIO 42 took ENG 9 took PE and BIO 10 took PE and ENG 6 took BIO and ENG 4 took all three subjects.   complete...

150 college students were interviewed 85 were registered for a Math class 70 were registered for an English class 50 were registered for both Math and English   complete a...

Over a period of 100 days, conditions were recorded as sunny or cloudy and warm or cold. Let S denote sunny days and W warm days. Of 75 sunny days, 55 were warm. There were only 10 cold and cloudy...

at the park today there were 13 parents who had boys and 17 parents who had girls four parents had both boys and girls. 5 people at the park had no children. How many people were at the park?&nbs...

In a certain college of engineering, 58% of students major in mechanical engineering; 32% major in aeronautical engineering. What percentage of students double major in mechanical and aeronautical...