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

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.

answered: Guest

you are saying it as if a fact, not a question, but yes, you would be correct? ; )

step-by-step explanation:

answered: Guest

Idk what the answer is bc i don't get it

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:30, megancrader11

Will mark brainliest if you answer ! the taco shop sold 198 lunches friday. this number is 3 more than 3 times the number they sold monday. let n represent the number of lunches sold monday. which equation shows an equality between two different ways of expressing the number of lunches sold on friday? a. n – 3 = 198 b. 3n – 3 = 198 c. 3n + 3 = 198 d. n + 3 = 198

Answers: 1

continue

Mathematics, 21.06.2019 19:30, matt2167

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Answers: 1

continue

Mathematics, 21.06.2019 19:30, daquanmcqueen77

Are triangles the congruent? write the congruency statement. what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

Answers: 1

continue

Mathematics, 21.06.2019 20:20, studyowl9192

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Answers: 2

continue

Do you know the correct answer?

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