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marissa [1.9K]
3 years ago
9

Marlene lives in a building where half the residents live on the first floor and half live on the second floor. She wants to est

imate the probability that, out of 3 randomly selected residents, 1 or 2 live on the first floor.
She uses a coin to conduct a simulation, by letting H represent someone living on the first floor and T represent someone living on the second floor and then flipping the coin three times. She repeats this process for a total of 15 trials. The results are shown in the table.

Estimated probability that 1 or 2 of 3 randomly selected residents live on the first floor: ________

A.1/2
B.1/6
C.5/6
D.5/12

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
8 0
The correct answer is:       5/6
Liula [17]3 years ago
7 0
5/6........................................................
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4 0
3 years ago
Read 2 more answers
Please help,I need it for tomorrow​
Inga [223]

Answer:

<C=26

<B=48

<D=106

<F=42

Step-by-step explanation:

I labeled all the angles to help this make more sense :)

So first we find <C, which is supplementary to <E so just do 180-154=26

Next, we know that <F and <B are equal because they form corresponding angles.

Angles <C <D and <B form a triangle. The three angles of a triangle always equal 180. Now that we know angles <C and <B, we just do 180-26-48=106.

Lastly, to find angle A, we just take 180-106-48=42.

Hope this helps

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