Mathematics, 13.09.2019 19:30 tommyewall34

Forty percent of world class tennis player are over 6 feet tall. 20 percent of the world class tennis players over 6 feet tall were premature babies. 30 percent of the world class tennis players who are not over 6 feet tall were premature babies. a. calculate the probability that a randomly selected world class tennis player is over 6 feet tall and was a premature baby. don't just write a number for the answer. use the probability notation, simplify the answer, and show your work. b. calculate the probability that a randomly selected world class tennis player is not over 6 feet tall and was not a premature baby. don't just write a number for the answer. use the probability notation, simplify the answer, and show your w ork.

Answers: 2

Show answers

Answers

Answer from: ozieera

a) There is an 8% probability that a randomly selected world class tennis player is over 6 feet tall and was a premature baby.

b) There is a 42% probability that a randomly selected world class tennis player is not over 6 feet tall and was not a premature baby.

Step-by-step explanation:

In this problem, we have these following probabilities:

-A 40% probability that a world class tennis player is over 6 feet tall.

-A 60% probability that a world class tennis player is not over 6 feet tall.

-A 20% probability that a world class tennis player over 6 feet tall was a premature baby. This also means that there is a 80% probability that a world class tennis player over 6 feet tall was not a premature baby

-A 30% probability that a world class tennis player who is not over 6 feet tall was a premature baby. This also means that there is a 70% probability that a world class tennis player who is not over 6 feet tall was not a premature baby.

a. Calculate the probability that a randomly selected world class tennis player is over 6 feet tall and was a premature baby.

$P = P_{1}*P_{2}$

$P_{1}$ is the probability that a random selected world class tennis player is over 6 feet tall. So

$P_{1} = 0.4$

$P_{2}$ is the probability that a world class tennis player over 6 feet tall was a premature baby. So

$P_{2} = 0.2$

$P = P_{1}*P_{2} = 0.4*0.2 = 0.08$

There is an 8% probability that a randomly selected world class tennis player is over 6 feet tall and was a premature baby.

b. Calculate the probability that a randomly selected world class tennis player is not over 6 feet tall and was not a premature baby

$P = P_{1}*P_{2}$

$P_{1}$ is the probability that a random selected world class tennis player is not over 6 feet tall. So

$P_{1} = 0.6$

$P_{2}$ is the probability that a world class tennis player under 6 feet tall was not a premature baby. So

$P_{2} = 0.7$

$P = P_{1}*P_{2} = 0.6*0.7 = 0.42$

There is a 42% probability that a randomly selected world class tennis player is not over 6 feet tall and was not a premature baby.

Answer from: Quest

Just tell koda to adjust the number of shapes himself.

Answer from: Quest

The answer is 41.7 because 1.39 times 30 is 41.7

Another question on Mathematics

Mathematics, 21.06.2019 15:40

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

Answers: 2

Answer

Mathematics, 21.06.2019 17:00

Abe is a triangle. can you use the sss postulate or the sas postulate to prove triangle abc = triangle aed? by sss only neither apply both apply by sas only

Answers: 2

Answer

Mathematics, 21.06.2019 20:50

Write the equation in logarithmic form 8^x=64

Answers: 1

Answer

Mathematics, 21.06.2019 21:30

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Answers: 2

Answer

You know the right answer?

Forty percent of world class tennis player are over 6 feet tall. 20 percent of the world class tenni...

Questions