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Adobe photoshop cs6 activation. An MBA new-matriculants survey provided the following data for 2018 students. Applied toMore Than OneSchool YesNo 23 and under20729379 Age8Group 36 and over51169. For a randomly selected MBA student, prepare a joint probability table for the experiment. Updated significantly in 2018, Bloomberg’s ranking methodology is based on data grouped into four indexes: compensation, learning, networking, and entrepreneurship.The weights of each of these indexes is based on what students, alumni, and recruiters told them is most important in evaluating an MBA program.

Hi there Everyone

I'm from South Africa and doing a modules: Business Statistics.

For some reason I just don't get probability, maybe it's cause I have this mind block?!? But I want to master it!

Please help me with these exercises:

A well-known business school in Cape Town conducted a survey in 2013 amongst its MBA applicants to determine whether students apply to only one business school. A sample of 2018 students was chosen and the following results were obtained: (rounded to 3 decimals)

Age Did you apply to more than one school?
Yes No Total
23 and under 207 201 408
24-26 299 379 678
27-30 185 268 453
31-35 66 193 259
36 and over 51 169 220
Total 808 1210 2018

1.1) What is the probability that a randomly selected applicant is younger than 27 [1]


1.2) What is the probability that a randomly selected applicant is 24-26 years old given that he/she did not apply to more than one school? [3]


1.3) What is the probability that a randomly selected applicant is 24-26 years old or did not apply to more than one school? [3]


1.4) Is the number of schools applied to independent of age? Let A = “Yes” and B = “23 and under”. [3]


Question 2 [10 Marks]

The probability that a flight departs on time in 0.83 and the probability that it arrives on time is 0.92. The probability that the flight arrived on time given that it departed on time is 0.94 (rounded off to two decimals).

2.1) What is the probability that the flight did not arrive on time? [1]


2.2) What is the probability that the flight arrived and departed on time? [3]


2.3) What is the probability that the flight departed on time given that it has arrived on time? [3]


2.4) What is the probability that the flight either arrived or departed on time? [3]


Question 3 [10 Marks]

Guess clothing stores recorded the buying behaviour of their customers over the last decade (2004 to 2014). They established that the probability that a customer will buy a pair of Guess jeans is about 0.7. A customer buys a Guess top 30% of the time given that a pair of Guess jeans was purchased, but only 15% of the time given that a pair of Guess jeans was not purchased.

3.1) Explain the concepts of:
3.1.1) Probability Addition Law (2)


Students

3.1.2) Probability Multiplication Law (2)


3.2) Calculate the probability that a randomly selected person buys a pair of Guess jeans and a Guess top (rounded off to two decimals). (3)


3.3) Calculate the probability that a randomly selected person buys a Guess top but no pair of Guess jeans (rounded off to two decimals). (3)


TOTAL MARKS = 30