Mathematics, 24.03.2020 20:44 alanisalvarez2000

Assume that the probability of a being born with Genetic Condition B is p = 1/60. A study looks at a random sample of 33 volunteers. Find the most likely number of the 33 volunteers to have Genetic Condition B. (Round answer to one decimal place.)

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Answer from: Wanna14ever

The expected number of volunteers in the sample with Genetic condition B is 0.6.

Step-by-step explanation:

The probability of a being born with Genetic Condition B is p = 1/60 = 0.017.

Find the most likely number of the 33 volunteers to have Genetic Condition B.

We can calculate as if it was a binomial distribution, with sample size n=33 and p=0.017.

The expected value of a binomial distribution random variable is calculated as:

$E(x)=np=33*0.017=0.55\approx0.6$

The expected number of volunteers in the sample with Genetic condition B is 0.6.

Answer from: Quest

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

$\text{simple interest} = \frac{principal\times rate\times time}{100} \\\\\text{simple interest} = \frac{1000\times 4\times 10}{100}=\$400\\\\amount = principal + interest\\amount = 1000 + 400 = \$1400$

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

Answer from: Quest

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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