Service Calls
Angeleek has placed a service call to fix her television and the repairman is supposed to show up for the repair between 10:00 am and 4:00 pm. However, Angeleek has to leave home at 3:00 to go to work, what is the probability that she will be home when the repairman shows up?
(use reduced fraction)
1/6
Assume that a spinner had the numbers from 1-12, what are the ODDS of getting an odd number?
(make sure it's reduced)
1:1
A bag contains 6 red chips, 7 white chips, and 8 blue chips. A chip is selected and then replaced. Then a second chip is selected. Find probability that a red chip followed by a blue chip is selected.
(give reduced fraction)
16/147
Consider an opaque bag with 8 green marbles, 8 blue marbles, and 4 red marbles. If two marbles are drawn without replacement what is the probability that they are both green?
(give answer as a reduced fraction)
14/95
A special commercial from Snickers is to be randomly played during the 4 hours of the Super Bowl. You decide that it would be cool to eat a Snickers during the commercial but realize that you do not have any Snickers at your house. It takes 35 minutes to run to the store and get back. What is the probability that you would still be able to see the commercial?
(use reduced fraction)
41/48
Assume that a spinner had the numbers from 1-12, what are the ODDS of getting a 1-digit number?
(make sure it's reduced)
3:1
Consider that 2 consecutive cards are drawn then replaced from a shuffled deck of cards. What is the probability that the first card is a red card, and the second card is face card?
(give reduced fraction)
3/26
A box contains 4 purple marbles, 3 green marbles, 6 blue marbles, and 2 orange marbles. Two consecutive draws are made from the box without replacement. Find the probability the first marble is purple, and the second is ANY color EXCEPT purple.
22/105
The principal announces that we will be having a severe weather drill sometime during the school day which is from 7 a.m. to 2 p.m. You have a bid test during second period from 8:15 a.m. to 9:00 a.m., what is the probability that your test will be postponed because of the drill during second period?
(give reduced fraction)
3/28
Assume that a spinner had the numbers from 1-12, what are the ODDS of getting a prime number?
(make sure it's reduced)
5:7
The probability of winning a blackjack hand in a casino is about 42%. What is the probability that you will win 3 hands in a row?
(give answer as a decimal to 2 decimal places)
0.07
Ms. Mincey needs two students to help her with a science demonstration for her class of 14 girls and 20 boys. She randomly chooses one student who comes to the front of the room. She then chooses a second student from those still seated. What is the probability that both students chosen are boys?
(give answer as a reduced fraction)
190/561
If the Probability of an event happening is 37.5%, what are the ODDS of the event happening?
3:5
A weather forecaster suggests the probability of rain on Saturday is 20% and on Sunday there is a 50% chance of rain. If the forecaster’s probabilities are correct what is the probability of no rain all weekend?
(give answer to 2 decimal places)
0.40
In a shipment of 25 computers, 4 are defective. Three computers are randomly selected and tested. What is the probability that all three are not defective if the first two are not replaced after being tested?
(give answer as a reduced fraction)
133/230
If the ODDs of an event happening is 7:4, what is the Probability of the event happening?
7/11