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2 years ago

13

If 21% of males and 15% of females in a given state play the guitar, what is the probability that a randomly selected subject in

the state plays the guitar, given that the subject is male?

1 answer:

Lisa [10]2 years ago

8 0

Answer:

Okayyyy so we’re hopping down th 45.

Step-by-step explanation:

For the me 39 me fo May the

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What is the measure of ZA?<br> 100"<br> A. 30<br> B. 50°<br> C. 70°<br> D. 130°

dmitriy555 [2]

Answe is B: 50
It needs to equal 180 so
100+30=130
180-130=50

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3 years ago

Re-write the equation 3x - y = 4 in slope-intercept form.

Verdich [7]

Answer:

a

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Rearrange 3x - y = 4 into this form ( add y to both sides )

3x = y + 4 ( subtract 4 from both sides )

3x - 4 = y OR y = 3x - 4 → a

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2 years ago

Beginning at 8:30 A.M., tours of the national capitol and the White House begin at a tour agency. Tours for the national capital

Rashid [163]

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2 years ago

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According to the National Institute of Allergy and Infectious Diseases, approximately 7% of U.S. children 4 years of age or youn

Yuliya22 [10]

Answer:

0.337 = 33.7% probability that one of the eight children has a food allergy.

Step-by-step explanation:

For each children, there are only two possible outcomes. Either they have a food allergy, or they do not. The probability of a child having food allergy is independent of any other child. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

7% of U.S. children 4 years of age or younger have a food allergy.

This means that $p = 0.07$

A day care program has capacity for 8 children in that age range.

This means that $n = 8$

What is the probability that one of the eight children has a food allergy?

This is P(X = 1).

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 1) = C_{8,1}.(0.07)^{1}.(0.93)^{7} = 0.337$

0.337 = 33.7% probability that one of the eight children has a food allergy.

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3 years ago

Im the diagram shown JKL~ MNP. Find MP and PN.

Vilka [71]

Answer: $MP=10, PN=6$

Step-by-step explanation:

Corresponding sides of similar triangles are proportional, so:

$\\\\frac{MP}{5}=\frac{8}{4}\\\\MP=10\\\\\frac{PN}{3}=\frac{8}{4}\\\\PN=6$

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2 years ago