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sleet_krkn [62]
3 years ago
11

Someone help please ​

Mathematics
2 answers:
Assoli18 [71]3 years ago
6 0

Answer:

Mean = 7

Step-by-step explanation:

The mean is all the numbers added together divided by the number of numbers.

\frac{7+0+11+10}{4}

\frac{28}{4}=7

Lerok [7]3 years ago
4 0

Answer:

7

Step-by-step explanation:

To find the mean, add up all the numbers then divide by the number of numbers

( 7+0+11+10) /4

28/4

7

The mean is 7

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Answer: 0.02257

Step-by-step explanation:

Given : Total cards in a deck = 52

Number of ways to select any 5 cards : ^{52}C_5

Since , there are total 13 kinds of card (includes Numbers from 2 to 9 and Ace , king, queen and jack).

Of each kind , there are 4 cards.

Number of ways to select three cards in a five card hand of a single kind : ^{4}C_3\times^{48}C_2

Number of ways to select three cards in a five card hand of a exactly three of a kind : 13\times^{4}C_3\times^{48}C_2

Now , the required probability = \dfrac{13\times^{4}C_3\times^{48}C_2}{^{52}C_5}

=\dfrac{13\times4\times\dfrac{48!}{2!46!}}{\dfrac{52!}{5!47!}}\\\\\\=\dfrac{58656}{2598960}

=0.022569027611\approx0.02257

∴ The probability of being dealt exactly three of a kind (like three kings or three 7’s, etc.) in a five card hand from a deck of 52 cards= 0.02257

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3 years ago
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See attachment foe the figure.

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CE is the answer.  

It doesn’t go through the middle, while the other 3 options do.

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3 years ago
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