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View Full Version : Probability - level 6


awilliams666
Feb 15, 2008, 12:08 PM
question:

steven puts some discs into a bag. He will pull out one disc from the bag that will decide if he goes to bed , cooks a meal , has a drink , or watches TV.

the probability of each occurring is:

bed= 1/4
meal= ?
drink= 1/6
t.v= 1/3

a) what was the probabiliy of steven cooking a meal?

b) which event is most likely to happen

c) if 4 discs had the ,drink symbol , how many discs had the bed symbol on them?

thank you!

iamthetman
Feb 15, 2008, 01:58 PM
a) it says he will pull out one disk so that means that the sum of the probability of the events must equal 1

b) the event that has the highest probability

c) Look at the question like this: if 4 discs provide a probability of 1/6 for the event to happen, how many disks will provide a probability of 1/4 for the event to happen. Hint: if there are 24 disks, 4/24 = 1/6 chance of having a drink. x/24 = 1/4 chance of going to bed.