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oksano4ka [1.4K]
3 years ago
5

Can somebody answer this question correctly

Mathematics
1 answer:
serg [7]3 years ago
5 0
Your answer well be 8
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Needdd hellpppppssssssss
Ratling [72]

Answer:

Choice number one:

\displaystyle \frac{5}{10}\cdot \frac{4}{9}.

Step-by-step explanation:

  • Let A be the event that the number on the first card is even.
  • Let B be the event that the number on the second card is even.

The question is asking for the possibility that event A and B happen at the same time. However, whether A occurs or not will influence the probability of B. In other words, A and B are not independent. The probability that both A and B occur needs to be found as the product of

  • the probability that event A occurs, and
  • the probability that event B occurs given that event A occurs.

5 out of the ten numbers are even. The probability that event A occurs is:

\displaystyle P(A) = \frac{5}{10}.

In case A occurs, there will only be four cards with even numbers out of the nine cards that are still in the bag. The conditional probability of getting a second card with an even number on it, given that the first card is even, will be:

\displaystyle P(B|A) = \frac{4}{9}.

The probability that both A and B occurs will be:

\displaystyle P(A \cap B) = P(B\cap A) =  P(A) \cdot P(B|A) = \frac{5}{10}\cdot \frac{4}{9}.

6 0
3 years ago
Given: r and s are intersecting lines. Point P lies on r and s. Point Q lies on r and s , What can you conclude about P and Q? S
sasho [114]
Point p and point Q has to be the same point
7 0
3 years ago
Please help me asappp!
diamong [38]

Answer:

C

Explanation:

The place where the lines intersect is between the lines of the graph.

3 0
3 years ago
Harry got 42 out of 49 correct in his test.
Ymorist [56]

Answer:

42/49 is the fraction

Step-by-step explanation:

you can't simplify so put the amount correct over the amount total.

7 0
3 years ago
Read 2 more answers
Help me on this please I’d appreciate it
Andrei [34K]

Answer:

27.7 (rounded)

Step-by-step explanation:

7 0
2 years ago
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