Investor in Australian Stock Exchange (ASX) tells, he predicts that there is a 60% probability that the Australian All ordinary Index will increase tomorrow. Which approach was used to produce this figure? Interpret the 60% probability.

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.2: Introduction To Probability
Problem 52E
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  1. Investor in Australian Stock Exchange (ASX) tells, he predicts that there is a 60% probability that the Australian All ordinary Index will increase tomorrow.
    1. Which approach was used to produce this figure?
    2. Interpret the 60% probability.
  1. All the Banks in Australia analysed the status of customer accounts at the end of the concessions period for loan repayments due to Global Pandemic. According to that one of the banks classified their loan accounts in two different ways (i)” overdue” and “not overdue” and (ii) Old and new. The table below shows the identified probabilities.

 

 

Overdue

Not overdue

New

0.06

0.13

Old

0.52

0.29

 

One account is randomly selected.

  1. If the account is overdue, what is the probability that it is new?
  2. If the account is new, what is the probability that it is overdue?
  3. Is the age of the account related to whether it is overdue? Explain
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