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3 years ago

Answer quick for brainliest

Mathematics

2 answers:

Kamila [148]3 years ago

8 0

Answer:

mark him the crown

Akimi4 [234]3 years ago

4 0

Answer:

y=-3x+1

Hope this helps!

(please mark brainliest)

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slader Suppose that 8% of all bicycle racers use steroids, that a bicyclist who uses steroids tests positive for steroids 96% of

d1i1m1o1n [39]

Answer:

P = 0.4812

Step-by-step explanation:

First, we need to use here two expressions and then do the calculations.

The first one is the conditional probability which is:

P(B|A) = P(A∩B)/P(A) (1)

The second expression to use has relation with the Bayes's theorem which is the following:

P(D|C) = P(C|D)*P(D) / P(C|D)*P(D) + P(C|d)*P(d) (2)

Now, the expression (2) is the one that we will use to calculate the probability of a selected random bicyclist who tests positive for steroids.

So, in this case, we will call C for positive and D that is using steroids and d is the opposite of d, which means do not use steroids.

Then, the probabilities are the following:

P(D) = 8% or 0.08

P(C|D) = 96% or 0.96

P(C|d) = 9% or 0.09

P(d) = 1 - 0.08 = 0.92

With these data, let's replace in expression 2

P(D|C) = 0.96 * 0.08 /0.96 * 0.08 + 0.09*0.92

P(D|C) = 0.0768 / 0.1596

P(D|C) = 0.4812 or 48.12%

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3 years ago

a 21-inch board is to be cut into three pieces so that the second piece is twice as long as the first piece and the third piece

aivan3 [116]

The first board is approximately 0.45 the second board is approximately 0.9 and the third board is approximately 19.8

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3 years ago

Natalia has 15,000 centimeters of yarn. How many meters of yarn does she have?

Usimov [2.4K]

Answer:

150 meters

Step-by-step explanation:

1 meter has 100 centimeters.

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3 years ago

1. Use polynomial identities and number properties to calculate 198^2

butalik [34]

Answer If you are reading this have a good day you might be down but you will make it your still young remember that have a good day

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3 years ago

Watching the weather channel, you can see the probability of it raining tomorrow. drag the term to the corresponding probability

azamat

Answer:

Probability:

1. probability of rain < 1/2 -------- Unlikely

2. probability of rain = 0 -------- Impossible

3. probability of rain = 1 -------- Certain

4. probability of rain > 1/2 --------- Likely

Step-by-step explanation:

Given -

Terms:

• impossible

• likely

• unlikely

• certain

Probability:

1. probability of rain < 1/2

2. probability of rain = 0

3. probability of rain = 1

4. probability of rain > 1/2

To find - Watching the weather channel, you can see the probability of it raining tomorrow. drag the term to the corresponding probability of it raining tomorrow. drag the term to the corresponding probability of it raining tomorrow.

Proof -

Probability:

1. probability of rain < 1/2 -------- Unlikely

2. probability of rain = 0 -------- Impossible

3. probability of rain = 1 -------- Certain

4. probability of rain > 1/2 --------- Likely

Reason -

Probability is the chance that an event will occur. Weather predictions are based on probability.

The probability of an event occurring is represented by a ratio.

A ratio is a number that is between 0 and 1 and can include 0 and 1.

An event is impossible if it has a probability of 0.

Having 13 months in a year has the probability of 0.

An event is certain if it has the probability of 1.

The probability that the sun will rise tomorrow morning is 1

8 0

3 years ago