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2.3
Probability
Question | Answer |
---|---|
There are four shopping carts available and one has a broken wheel. What is your probability of selecting the cart with the broken wheel? | 25% (1/4 = 0.25) |
There is a 20% of parking close to the door and a 30% chance of getting the shopping cart with a squeaky wheel. How do we calculated the probability of both events occurring? | Multiply Key Words: AND, ALL, BOTH |
There is a 20% of parking close to the door and a 30% chance of getting the shopping cart with a squeaky wheel. How do we calculated the probability of either event occurring? | Addition Key Words: OR, EITHER |
Multiplying two events calculates an ____________ | Intersection |
Adding two events calculates a _______________ | Union |
The grocer is running a 10 for $10 special on cans of soup. You can mix and match the 5 different flavors of soup. You decide to purchase 10 cans. What can we use to count all the possible outcomes of flavors picked? | Combination |
There is a 90% chance you will have to wait in line for more than 6 minutes to check out at the grocer. What is the complement? | 10%. If there is a 90% chance of yes, then there is a 10% chance of no. 90% + 10% = 100% |
50% chance it will rain. There is a 20% chance you park in the garage in the rain and a 60% chance you park there if it is not raining. Given you are parked in the garage, what is the probability it is raining? Which probability technique applies? | Bayes |