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Goryan [66]
3 years ago
13

Pls help I will mark brainliest quick

Mathematics
2 answers:
azamat3 years ago
4 0

Answer:

the picture is blocked

Step-by-step explanation:

Trava [24]3 years ago
3 0

Answer:

15. 1 < x < 7

16. (-infinity, infinity)

Step-by-step explanation:

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An athletic league does drug testing of its athletes, 10 percent of whom use drugs. This test, however, is only 95 percent relia
Vera_Pavlovna [14]

Answer:

0.6786

0.3214

1 / 172

171 / 172

Step-by-step explanation:

Note: The tree diagram is attached below.

a) The athlete is a drug user, given that the test is positive P(D/+)

Using conditional Probability:

P ( D / + ) = P ( D and + ) / P ( +)

= (0.1 * 0.95) / (0.1 * 0.95 + 0.9*0.05)

= 0.6786

Answer: P ( D / + ) = 0.6786

b) The athlete is not a drug user, given that the test is positive P(D' / + )

Using conditional Probability:

P ( D' / + ) = P ( D' and + ) / P (+)

= (0.9 * 0.05) / (0.1 * 0.95 + 0.9*0.05)

= 0.3214

Answer: P ( D' / + ) = 0.3214

c) The athlete is a drug user, given that the test is negative P (D / - )

Using conditional Probability:

P ( D / - ) = P ( D and - ) / P (-)

= (0.1 * 0.05) / (0.9 * 0.95 + 0.1*0.05)

= 1 / 172

Answer: P ( D / - ) = 1 / 172

(d) The athlete is not a drug user, given that the test is negative P (D' / - )

Using conditional Probability:

P ( D' / - ) = P ( D' and - ) / P (-)

= (0.9 * 0.95) / (0.9 * 0.95 + 0.1*0.05)

= 171 / 172

Answer: P ( D / - ) = 171 / 172

4 0
2 years ago
There are 6 red marbles, 8 blue marbles, and 11 green marbles in a bag. What is the probability that you will ra
ankoles [38]

Answer:56%

Step-by-step explanation:

total marbles 6+8+11=25

probability a red or a blue (6+8):25=0.56=56%

4 0
2 years ago
T+20.04=14.3 uhm okay it says it's too short sooooo yea please answer
Goshia [24]
The answer is t=5.74
8 0
2 years ago
Which expression is equivalent to (3x-1) (-5x+6)?
Gnoma [55]

Answer:

−15x2+23x−6

Step-by-step explanation:

(3x−1)(−5x+6)

=(3x+−1)(−5x+6)

=(3x)(−5x)+(3x)(6)+(−1)(−5x)+(−1)(6)

=−15x2+18x+5x−6

=−15x2+23x−6

8 0
3 years ago
In a bag of candy, there are 6 blue pieces, 14 yellow pieces, and 5 green pieces. What is the ratio of green pieces to total pie
Nutka1998 [239]

Answer: 1/5

Step-by-step explanation:

5 green out of 25 total

reduces to 1 to 5 or 1/5

7 0
2 years ago
Read 2 more answers
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