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Eduardwww [97]
3 years ago
5

Five cards are dealt from 52.

Mathematics
1 answer:
icang [17]3 years ago
5 0

For reference,

\dbinom nk=\dfrac{n!}{k!(n-k)!}

a. \dbinom{52}5=2,598,960 - nothing special here, you're just choosing any 5 cards from the deck

b. \dbinom{13}4\dbinom{39}1=27,885 - 13 hearts to choose from, and 39 of any other suit

c. \dbinom{40}5=658,008 - there are 12 face cards to omit from the count

d. \dbinom{26}5=65,780 - half the deck contains spades/clubs

e. \dbinom{26}5=65,780 - essentially the same situtation as (d)

f. \dbinom{40}5\dbinom{12}0+\dbinom{40}4\dbinom{12}1+\dbinom{40}3\dbinom{12}2=2,406,768 - either 0, 1, or 2 face cards are allowed

g. \dbinom{13}2\dbinom{39}3+\dbinom{13}3\dbinom{39}2+\dbinom{13}4\dbinom{39}1+\dbinom{13}5\dbinom{39}0=953,940 - similar to (f)

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<u>Sampe : Total</u>
25        :   750
(÷25)       (÷25)
  1         :    30
( x7)         ( x7)
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Answer:  (a) There is a total of 210 orange cakes made on Monday.

The sample is 5 when corrected to the nearest whole number.
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soldier1979 [14.2K]

part A is just simple multiplication
since there are 2 6 sided number cubes there are 36 possible outcomes(6 sides *6 sides)

Part B is a little trickier. First off, you must find how to get seven.
1. 1+6 and 6+1

2. 2+5 and 5+2

3.3+4 and 4+3

therefore there are six combinations

you put that number over the total combos and get 6/36 or 1/6.

Hope this helps!

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3 years ago
Read 2 more answers
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