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Lerok [7]
3 years ago
10

HELP ASAP PLSS 10 POINTS

Mathematics
1 answer:
Anna11 [10]3 years ago
7 0
I think it’s 2.5 because I did 7.5 divided by 3 and the scale factor should be what you multiply by
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You have two biased coins. Coin A comes up heads with probability 0.1. Coin B comes up heads with probability 0.6.However, you a
Andrews [41]

Answer:

The probability that our guess is correct = 0.857.

Step-by-step explanation:

The given question is based on A Conditional Probability with Biased Coins.

Given data:

P(Head | A) = 0.1

P(Head | B) = 0.6

<u>By using Bayes' theorem:</u>

P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}

We know that P(B) = 0.5 = P(A), because coins A and B are equally likely to be picked.

Now,

P(Head) = P(A) × P(head | A) + P(B) × P(Head | B)

By putting the value, we get

P(Head) = 0.5 × 0.1 + 0.5 × 0.6

P(Head) = 0.35

Now put this value in P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)} , we get

P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}

P(B|Head) = 0.6 \times \frac{0.5}{0.35}

P(B|Head) = 0.857

Similarly.

P(A|Head) = 0.857

Hence, the probability that our guess is correct = 0.857.

7 0
4 years ago
HELP PLEASE!! WILL MARK BRAINLIEST!!!!
elixir [45]

Answer:

see below

Step-by-step explanation:

\frac{1}{x^{2} } +  \frac{2}{y}/ \frac{5}{x} -\frac{6}{y^2}

find common denominator and add the fractions in numerator and denominator:

1/x² + 2/y = y+2x²/x²y

5/x -6/y² =5y² -6x/xy²

(y+2x²)/x²y / (5y²-6x)/xy² change into multiplication

(y+2x²)/x²y * xy²/(5y²-6x)

\frac{y+2x^{2} }{x^{2} y} *\frac{xy^{2} }{5y^{2}-6x } simplify

y(y+2x²)/ x(5y²-6x)

4 0
3 years ago
Factor and\or expand the following expression : 3(2x + w)
lutik1710 [3]

Answer:

6x +3w

Step-by-step explanation:

3(2x + w)

Distribute

3*2x +3*w

6x +3w

7 0
3 years ago
Read 2 more answers
Please help! I’ve been struggling trying to figure out how to start with these two problems.
Vinil7 [7]

Answer:

Step-by-step explanation:

7 0
2 years ago
Can someone help me out with this?
Anton [14]

Answer:

.5? or 1/2

Step-by-step explanation:

i think its half, because the Y factors are going down by half.

i hope that kinda made sense.

5 0
3 years ago
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