Regular Probability
Event A occurs with probability 0.8. The conditional probability that event B occurs, given that A occurs, is 0.5. What is the probability that both A and B occur?
What is .4
The probability a family owns a dog is .40. There are 10 houses on a street. The probability half of the families own a dog is...
What is .2007
The probability you find a defective bag of popcorn is .02. What is the probability the first defective bag will be the 10th bag?
What is .0163
True or False. This questions is a binomial distribution.
True
Find the value of P(10) so that the following is a valid probability distribution.
X. 5 10 20 30 40 50
P(X). .13 ? .11 .14 .21 .03
What is .38
A car comes in 3 different body styles and 5 different colors. How many possible options are there?
What is 15
The probability someone makes an 5 in AP statistics test is .15. Ms. Lucius teaches 30 students. What is the probability at no more than 10 students make an 5?
What is .997
The probability John wears a green shirt is .05. What is the probability it will take him a month or less (assume 30 days) to wear a green shirt?
What is .7854
True or False. On a Venn diagram you should alway add all the data outside the circles before adding data to A and B.
False, you should always start with the intersection of A and B.
In a certain game of chance, your chances of winning are 0.2. If you play the game five times and outcomes are independent, what is the probability you win all five times?
What is .00032
How many ways can I choose 8 papers to grade out of a class of 30 students?
What is 5852925
The probability Bob orders dessert at a restaurant is .11. He goes out to eat once a week. Over the course of 1 year, what is the probability he orders dessert at least 5 times?
What is .6904
The probability it rains is .21. On average, in a year how many days until it rains?
What is 4.76 days
True or False. If you roll two fair dice you can have 32 possible outcomes.
False, you have 36 outcomes
It has been estimated that about 30% of frozen chickens contain enough salmonella bacteria to cause illness if improperly cooked. A consumer purchases 12 frozen chickens. Find the probability that the consumer buys exactly 4 contaminated chickens.
0.231
If I am rolling two fair dice, what is the probability that I roll a 6?
What is 5/36 or 0.138
The probability it will rain any given day is .21. What is the probability it will rain more than 5 days this week?
What is .00049
The probability Logan gets a hit is .15. What is the probability it takes him at least 5 at bats to get a hit?
What is .522
True or False. The probability of two mutually exclusive events occurring together is .5.
What is False.
If events are mutually exclusive, they NEVER happen together.
DAILY Double!!!!!!
In the movie Money Ball what team did Brad Pitt and Jonah Hill work to build through the use of baseball statistical data.-- No phones or google!
Who are the Oakland A's?
If Caroline rolls a die and it shows 4 she wins $2. If it shows anything else, she loses $.50. What is her expected value?
What is $-.08
The probability you will have a tire blowout is .015. What is the probability you will have at least 1 blowout this week (school week)?
What is .0728.
The probability the cafeteria serves fish sticks is .03. What is the probability it will take them more than 10 days to serve fish sticks?
What is .7374
True or False. The probability that two independent events influence one another is .5.
What is False.
If events are independent they may occur together but they don't influence one another.
Data is gathered on a randomly selected Saturday on the shoppers at Target. The probability that a shopper is drinking Starbucks is 25%, while the probability they have kids with them is 65%, and the probability that they have both is 15%. What is the probability that the shopper will not have Starbucks and not have kids with them? (Hint: use a venn diagram)
What is .25