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hjlf
3 years ago
13

Find the mean of this set of numbers.

Mathematics
1 answer:
mr_godi [17]3 years ago
6 0
Mean is basically average
basically find how many terms (there are 6 terms)
then add them all together
5+-11+7+12+-1+0 =12
then divide the sum by the number of terms
12 divided by 6=12/6=2

the answer is 2 or B
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4 years ago
The probability of drawing two aces from a standard deck is 0.0059. We know this probability, but we don't know if the first car
vampirchik [111]

A standard deck of playing cards consists of 52 playing cards.

1. Count the probability of drawing two aces from a standard deck without replacment.

Among 52 playing cards are 4 aces, then the probability to select first ace is 4/52=1/13. After picking out first ace, only 3 aces left and in total 51 playing cards left, then the probability to select second ace is 3/51=1/17. Use the product rule to find the probability to select two aces without replacement:

\dfrac{1}{13}\cdot \dfrac{1}{17} =\dfrac{1}{221}\approx 0.0045.

2. Count the probability of drawing two aces from a standard deck with replacment.

Among 52 playing cards are 4 aces, then the probability to select first ace is 4/52=1/13. After picking out first ace, this card was returned back into the deck and the probability to select second ace is 4/52=1/13 too. Use the product rule to find the probability to select two aces with replacement:

\dfrac{1}{13}\cdot \dfrac{1}{13} =\dfrac{1}{169}\approx 0.0059.

3. If events A and B are independent, then Pr(A\cap B)=Pr(A)\cdot Pr(B).

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7 0
4 years ago
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Answer: 23.2  

Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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3 years ago
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tiny-mole [99]

Answer:

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Step-by-step explanation:

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7 0
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