A school has 100 students. Among them, 60 students
play foorball, 50 students play basketball, and...
A school has 100 students. Among them, 60 students
play foorball, 50 students play basketball, and 30 students play
both football and basketball.
A) Use Inclusion/Exclusion rule to find out how many
students play either football or basketball (or both).
B) if two students are randomly selected from this school, what is
the probability of the evenet in which both of them play neither
football nor basketball?
A survey of 295 college students produced the
following information:
82 are
practicing football, (FB)
115...
A survey of 295 college students produced the
following information:
82 are
practicing football, (FB)
115 are practicing
basketball, (BB)
63 are practicing
volleyball, (VB)
27 are practicing
both FB and VB,
35 are practicing
both FB and BB,
40 are practicing
both BB and VB,
20 are practicing all
the three types of sports.
How many students were surveyed who are practicing two
sports?
How many students were surveyed who are practicing only
FB?
How many students are practicing...
2. The following table shows three
demand schedules for a person who likes to play football...
2. The following table shows three
demand schedules for a person who likes to play football and/or go
swimming. In scenario S1, his income is $100,000 per year and
swimming cost $18 each. In scenario S2, his income is also $100,000
per year, but the price of swimming rises to $22 per round. And in
scenario S3, his income increases to $140,000 per year while
swimming cost $22 per round.
A. Use data under S1 and S2 to
calculate the...
In a survey, 150 high school students were asked whether they
play sports. The survey also...
In a survey, 150 high school students were asked whether they
play sports. The survey also recorded the grade of each of the
participants. The responses are given below: Yes No Freshman 19 22
Sophomore 23 17 Junior 18 12 Senior 20 19 Use this table to
determine each of the following probabilities. Write each answer as
a percent rounded to one decimal place, i.e. 16.8%. Do not include
the percent symbol.
a) Find the probability that a randomly selected...
20 women and 30 men between 18 to 60 years old and the
number of hours...
20 women and 30 men between 18 to 60 years old and the
number of hours that they work. These information would be your
populations. For each group find the followings:
20 Women Ages = 19, 23, 40, 18, 60, 50, 21, 30, 33, 28,
33, 35, 28, 24, 28, 18, 19, 22, 25, 50
20 women work hours weekly = 40, 24, 30, 31, 19, 10, 21,
5, 40, 9, 8, 40, 37, 12, 20, 40, 20, 10, 40,...