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kow [346]
2 years ago
6

30. The average of a list of 4 numbers is 92.0. A new list

Mathematics
1 answer:
klasskru [66]2 years ago
3 0

<u><em>Answer:</em></u>

H. 94.0

<u><em>Explanation:</em></u>

The original list: a _1 a _2 a _3 40

The new list: a_1 a_2 a_3 48

\frac{a_1+a_2+a_3+40}{4} =92

a_1+a_2+a_3=92 × 4-40=328

\frac{a_1+a_2+a_3+48}{4} =\frac{328+48}{4} =94

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What is the conditional probability that exactly four heads appear when a fair coin is flipped five times
cestrela7 [59]

Answer:

5/32

Step-by-step explanation:

If a coin if flipped five times with four heads, then it has exactly one tail. The number of way to arrange four heads and one tail are as follows:

T H H H H

H T H H H

H H T H H

H H H T H

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Essentially, there are five way because there are five "positions" where the tail could be.

Then, you need to find the total amount of possibilities for flipping a coin five times. Every time you flip it, there are two possibilities- heads and tails. Therefore, for five flips, the total amount of possibilities is

2x2x2x2x2 = 32

You know that

probability= # of desired outcome

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                      # of total outcomes

So the probablity is 5/32.

8 0
3 years ago
Please help me! I really need someone to explain how to find the perimeter also. Thank you in advance!
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