1 Answer

Sidverma · Answer 1 · 2023-05-14T09:02:02+0000

The total number of pieces in the domino is 28.

a)

The number of pieces that have an odd number of dots is 12, so the probability of choosing a piece with an odd number of dots is:

$P=(12)/(28)=(3)/(7)=\text{0}.4286=42.86\text{\%}$

b)

The number of pieces that have 2 dots is 2, so:

$P=(2)/(28)=(1)/(14)=0.0714=7.14\text{\%}$

c)

The number of pieces that don't have 7 dots is 25, so:

$P=(25)/(28)=0.8929=89.29\text{\%}$

d)

The number of pieces that have at most 8 dots is 22, so:

$P=(22)/(28)=(11)/(14)=0.7857=78.57\text{\%}$

e)

The number of pieces that have more than 10 dots is 2, so:

$P=(2)/(28)=(1)/(14)=0.0714=7.14\text{\%}$

f)

The number of pieces that have a number of dots multiple of 4 is 7, so:

$P=(7)/(28)=(1)/(4)=0.25=25\text{\%}$

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