Probability (using and + OR)
Probability (using and + OR)
2 Venn Diagram
3 venn diagram
100
At a cooking program, the chef liked all the cooks' meals, so he decided to give them a prize at random. In a bag he puts 10 prizes, and 25 dollar bills. What is the probability of getting a prize?
2/7 -- (10/(10+25)=10/35=2/7 or 0.29 or 28.6%)
100
Its halloween night and the kids hope to gather over 100 pieces of candy before houses start to close at 10:00 Pm, if they start at 7:30 they have a 0.5 probability.What is their probability if they start at 8:00 pm?
0.6 probability
200
Charlie is offered a lollipop for getting an A on his math test. The teacher pulls out a bowl of lollipops, with 8 blue raspberry, 17 cherry, and 11 pineapple. One lollipop is chosen at random. What is the probability Charlie gets a cherry OR a pineapple.
78% or 0.78 (All Flavors: 8+17+11=36, 17/36 (cherry/total) +11/36 (pineapple/total) =28/36)
200
Chris went to the store and bought rotisserie chicken, and there is a 0.18 probability that the chicken is undercooked, and a 0.75 probability that the chicken is fully cooked, what is the probability that the chicken is overcooked?
0.07 probability
300
The brand new Call of duty game came out and there are only 500 copies that sell 5 copies per hour.What is the probability that you can purchase one 10 hours after release?
100% probability
300
Theres a baking contest going on at the festival and the record for most pies made was 28 in 2 hours.there is a 0.6 probability that you can cook 15 pies each hour, what is the probability of beating the record?
0.36 probability
400
The kids order an xbox in the mail, and there is a 0.6 probability that it will arrive on February 15, and a 0.80 probability that it will arrive on February 16, what is the probability that it will arrive on a later date?
0.2 probability
400
In a standard deck of 52 cards there are 13 diamonds and 13 hearts and 13 spades and 13 clubs. Find the probability of choosing a card at random that is a spade AND/OR a 7.
0.307 probability
400
At a Ski Resort 100 people were interviewed. 20 people snowboard and 25 people ski. Only 5 people do both. Draw the Venn diagram and answer the questions below.
Ski or Snowboard?
Just Ski?
Don’t Ski or Snowboard?
(a.)=.35 or 35
(b.)=.2 or 20
(c.)= .5 or 5
500
The kid at the claw machine wants the gummy bear, but the dinosaur is on top of it, if there is a 0.25 probability of getting the gummy bear, and a 0.90 probability of getting the dinosaur what is the probability of grabbing both?
0.27 probability
500
If you roll a pair of dice, what is the probability of getting an even number AND/OR a multiple of 3?
0.666 probability
500
A survey of Teenage guys in Middlesex county took a survey. Out of 240 people 70 people play Warzone and 55 people play multiplayer. 10 people only play both. Draw out the Venn Diagram and then answer the questions below.
Just play Warzone?
Plays Warzone or Multiplayer?
Doesn’t play Warzone or Multiplayer?
(a.)=.60 or 60
(b.)=1.15 or 115
(c.)= 1.25 or 125
500
A college class of 40 students was surveyed on what foods they prefer to eat at the dining hall. The options included Pizza, salad, and Chicken.
10 students liked pizza and salads, but not chicken
6 students liked pizza and chicken but not salad
2 students liked chicken and salad, but not pizza
2 students liked chicken, salad and pizza
10 students liked pizza only
9 students liked chicken only
1 student liked salad only
Using the above information answer the following questions:
Create a venn diagram representing the information found in the survey.
If one person is chosen at random, what is the probability that the person will like salad.
