9.19.3 Review Problems.notebook
1
March 13, 2018
Mar 134:48 AM
Hello, my awesome precalc students. I regret that I am unable to be there with you today. Study hard, and I will see you tomorrow for Pi Day! Email me if you have any questions.
Mar 1012:31 PM
Permutation or Combination?
10 candidates are chosen
C
9.19.3 Review Problems.notebook
2
March 13, 2018
Mar 1012:32 PM
Five runners finish a race.
P
Mar 1012:27 PM
How many 4digit numbers are possible?Numbers like 0001 count as 4digit.
10,000
9.19.3 Review Problems.notebook
3
March 13, 2018
Mar 1012:29 PM
How many outfits are possible if you have 4 pairs of skinny jeans, 2 hoodiesand 3 pairs of shoes?
24
Mar 1012:32 PM
How many committees of 5 peoplecan be selected from 6 men and 7 women if the committee must have 2 men and 3 women?
6C2*7C3 = 525
9.19.3 Review Problems.notebook
4
March 13, 2018
Mar 1012:34 PM
How many ways can 4 girls line up?
4! = 24
Mar 1012:35 PM
How many ways can first and second chair flute be chosen from 10 flutists?
10P2 = 90
9.19.3 Review Problems.notebook
5
March 13, 2018
Mar 1012:36 PM
How many different 3 number locker combinations are possible on a lockthat has 30 numbers on its dial?
30P3 = 24,360
Mar 1012:37 PM
Rolling Dice:
P(sum is 4 or 5)
7/36
9.19.3 Review Problems.notebook
6
March 13, 2018
Mar 1012:38 PM
P(sum is 11)
1/18
Mar 1012:38 PM
P(prime sum)
15/36 = 5/12
9.19.3 Review Problems.notebook
7
March 13, 2018
Mar 1012:40 PM
You are rolling a die and tossing a coin. What is the probability of getting an even number and a head?
1/2*1/2 = 1/4
Mar 1012:41 PM
A 4card hand is dealt from 52 cards.What is the probability that 2 are queens?
[(4C2)(48C2)]/(52C4) = .025
9.19.3 Review Problems.notebook
8
March 13, 2018
Mar 1012:43 PM
A 4card hand is dealt from 52 cards.What is the probability that none are queens?
(48C4)/(52C4) = .719
Mar 1012:44 PM
A 4card hand is dealt from 52 cards.What is the probability that 1 is a queen and 3 are aces?
[(4C1)(4C3)]/(52C4) = .0000591
9.19.3 Review Problems.notebook
9
March 13, 2018
Mar 1012:46 PM
10 nickels are tossed dated 20002009.Find the probability that there is a tail on the 2000 and 2009 nickels only.
1/1024
Mar 1012:47 PM
10 nickels are tossed dated 20002009.Find the probability that there is exactly 3 tails.
(10C3)(.5)3(.5)7 = 15/128