A2 P1

A2 P1#

Let:

pa = 1 / {{ params.denomin }}                     # P(A)
pnota = 1 - pa                 # P(A') prob A compliment
pbmida = {{ params.pbmida }}                   # P(B|A)
pnotbmida = 1 - pbmida         # P(B'|A)
pbmidnota = {{ params.pbmidnota }}               # P(B|A')
pnotbmidnota = 1 - pbmidnota   # P(B'|A')

  • A be the event that a randomly selected package from this company was delivered by Canada Post, and

  • B be the event that a randomly selected package from this company was delivered by the expected delivery date.

Round all answers to 3 decimal places.

Part 1#

What is the probability that a randomly selected package from this company was delivered by Purolator? (You may assume that Canada Post and Purolator are the only shipping companies this company uses).

Answer Section#

Please enter a numeric value in.

Part 2#

What is the probability that a randomly selected package from this company was delivered on time by Canada Post?

Answer Section#

Please enter a numeric value in.

Part 3#

What is the probability that a randomly selected package from this company was not delivered by the expected delivery date?

Answer Section#

Please enter a numeric value in.

Part 4#

Suppose a package from this company was not delivered by the expected delivery date. What is the probability that it was delivered by Canada Post?

Answer Section#

Please enter a numeric value in.

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.