During the fall break 315 students visited home. 115 traveled via plane, 150 traveled via cars,...

During the fall break 315 students visited home. 115 traveled via plane, 150 traveled via cars, and 50 traveled via trains. After reaching home 12% of the students who traveled by became sick, 5% of the students who traveled by cars became sick, and 10% of the students who traveled through trains became sick.

a.) Draw a tree diagram that displays this information. Write the probability of each branch

b.) A student is selected at random. Find the probability that the student traveled via train, given that the student became sick.

c.) A randomly selected student did not become sick. Find the probability that the student traveled via plane.

Expert Solution

orchestra answered 2 years ago

Of the ten students who received an "A+" in a class during the fall 2019 semester,...

Of the ten students who received an "A+" in a class during the fall 2019 semester, three were sophomores, two were juniors, and one was a senior (the remaining student(s) were in their first year). the teacher believes four of the ten students are strong candidates for TA positions. Determine the probability the four candidates include exactly one student from each year in college.

During spring break, students have an elasticity of demand for a trip to Florida of -3,...

During spring break, students have an elasticity of demand for a trip to Florida of -3, while senior citizens have an elasticity of demand for a trip to Florida of -6. What pricing insight does this give to the airline companies? Group of answer choices Charge a lower price to the senior citizens because they have a relatively more elastic demand. Charge a lower price to the students because they have a relatively more inelastic demand. Charge a higher price...

On a trip home during the summer break, you pay your Uncle Davea visit at...

On a trip home during the summer break, you pay your Uncle Dave a visit at his record store. When you walk in, you notice there is not one single customer. “I have run this store since the 1980s,” Uncle Dave says with a sigh. “We were the first store in this whole town to sell compact discs! But now, it feels like we’re at least a decade or two behind the times. No one buys records anymore—or even CDs!...

In the Fall semester, 112 students attended a 5-day field trip to Washington DC. During the...

In the Fall semester, 112 students attended a 5-day field trip to Washington DC. During the trip, 43 of the students became ill with norovirus, a highly contagious gastrointestinal illness that is shed in the feces of infected persons. All of the students who attended the field trip live in the same dormitory, which houses a total of 438 residents. In the week following the return of the travelers, another 168 dormitory residents became ill with norovirus. Over the course...

Question