{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

College math notes 7E

# College math notes 7E - Suppose you f l ip a coin 3 times...

This preview shows pages 1–3. Sign up to view the full content.

Suppose you flip a coin 3 times in a row. How many different sequences of heads and tails are possible? 2*2*2=8 if you roll two 6 sided dice, how many different outcomes are possible 6*6= 36 Suppose Texas license plates must be 6 characters long and first 3 characters are either letters or digits and last 3 characters must be digits. How many possible license plates. 36*36*36*10*10*10= 46,656,000 how many 5- letter passwords can you make from the letters { a,b,c,d,e,f} if adjacent letters must be different 6*5*5*5*5= 3750 an anagram = a word formed by rearranging the letters in some original word. Ex: how many anagrams of “stop” Pots, tops, spot, psot, tpso, opts Factorial is a decreasing product of natural numbers down to 1. (ON PAPER) Suppose you deal out a sequence of 5 cards from a deck of 52 cards. How many different 5-card choices are there? 52*51*50*49*48…= 311,875,200 Two ways to select a subset of items from one large set of DISTINCT numbers: 1. if we care about the order/arrangement of selection then selection is a permutation.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2. 2. If we don’t care about the order, then selection is a
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

College math notes 7E - Suppose you f l ip a coin 3 times...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online