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3 years ago

10

Jacqueline has a bag containing six black checkers and four red checkers. What is the probability of her selecting two black che

ckers if she does replace the first checker she pulls out of the bag before selecting the second checker?

1 answer:

Marat540 [252]3 years ago

7 0

I think the probability is 1 because they’re mixed

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2|x-7|=8 solve the equation

Nat2105 [25]

2|x-7|=8
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x-7=4
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4 years ago

Help me please please

Hoochie [10]

Answer:

a is the correct one

Step-by-step explanation:

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Ariel wants to choose 5 players for her basketball team. There are 7 players to choose from. How many different teams can aerial

Natali [406]

The <u>correct answer</u> is:

A) 21

Explanation:

This is a combination of 7 objects taken 5 at a time:

$_nC_r=\frac{n!}{r!(n-r)!}$

In our case, n = 7 and r = 5:

$_7C_5=\frac{7!}{5!(7-5)!}=\frac{7!}{5!2!}
\\
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\\
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4 years ago

Out of a total of 10 college textbooks estimate the standard deviation of their ages if the oldest textbook is known to be 7.9 y

tamaranim1 [39]

Answer:

Given that the maximum age of the textbook is 7.9 years and the minimum age of the textbook is 1.3 years.

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3 years ago

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Papessa [141]

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3 years ago

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