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lana [24]
3 years ago
9

the weight of 100 identical samples of a substance is 0.01 pounds. what is the weight of 10000 samples?

Mathematics
1 answer:
guapka [62]3 years ago
8 0
10,000 * 0.01 = 100
The weight of 10,000 samples is 100
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Three cards are drawn from a standard deck of 52 cards without replacement. Find the probability that the first card is an ace,
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Answer:

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Step-by-step explanation:

In a deck of cart, we have:

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So, the probability of drawing an ace as first cart is:

p(a)=\frac{a}{n}=\frac{4}{52}=\frac{1}{13}=0.0769

At the second drawing, the ace is not replaced within the deck. So the number of cards left in the deck is

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Therefore, the probability of drawing a three at the 2nd draw is

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Then, at the third draw, the previous 2 cards are not replaced, so there are now

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p(j)=\frac{j}{n-2}=\frac{4}{50}=0.08

Therefore, the total probability of drawing an ace, a three and then a jack is:

p(atj)=p(a)\cdot p(j) \cdot p(t)=0.0769\cdot 0.0784 \cdot 0.08 =4.82\cdot 10^{-4}

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