Random Math
5!/3!
20
100% chance
2/52 or 1/26
In permutation notation P(n,k), what are "n" and "k" ?
n = number of things/objects
k = spaces/slots
A coin is tossed 3 times, how many possible outcomes are there?
2 * 2 * 2 = 8
What are the possible outcomes for flipping a coin two times?
HH
HT
TH
TT
Is it possible to have a negative probability? (ex. -2/3)
No
Probability of pulling a queen OR a 2
8/52 or 2/13
How many unique ways are there to arrange the letters in the word SONG?
4! = 24
72
A card is drawn at random from a standard deck. What is the probability that card is the “5 of clubs”?
1/52
Which is NOT an example we've used for probability so far?
a. Cards
b. Dice
c. License Plates
d. Spinner
Probability of pulling a red 7 AND a Jack
8/52 or 2/13
Calculate the permutation:
(3,2)
6
Which probability is lower? 12/22 or 3/5?
12/22
What is it called when a number has an exclamation point at the end? (ex 6!)
Factorial
Which is better, a probability of 3/7 or 6/10?
6/10
You are playing only one suit. What is the probability of randomly selecting a card lower than 6?
(Ace counts as #1)
5/13
How many different 7-character license plates can you create with letters and digits 0-9?
(first 3 spaces must be letters and the final 4 must be digits)
26 x 26 x 26 x 10 x 10 x 10 x 10
How many different ways are there to arrange a 6-person lineup from 10 different people? Give your answer as a number.
151,200
Calculate 788! / 787!
788
What is the probability of rolling an odd number and then a 5 on a pair of dice?
3/6 x 1/6 = 3/36 or 1/12
You are playing with one suit. You choose two cards randomly (10 and 7). What is the probability you will pick a card higher than 5 on your next draw?
6/11
How many 3-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?
Give your answer as a numeric answer.
P(10,3)= 720
There is a 7-section spinner numbered 1-7. What is the probability of this EXACT event happening in this order:
First spinning an odd number, then spinning a number lower than 3, then spinning a 9?
0