A population consists of twenty bowerbirds, six of which have bowers featuring reflective decor. If three of the bowerbirds are randomly sampled with replacement from this population, what is closest to the expected number of them that have bowers featuring reflective decor?Group of answer choices00.90.953

The expected number of bowerbirds in the sample that will have bower featuring reflective color is E(X)=0.9

Step-by-step explanation:

We can model this with a binomial random variable, with sample size n=3 and probability of success p=0.3.

The expected number of bowerbirds in the sample that will have bower featuring reflective color can be calculated as:

4th option is correct xy=-10

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x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

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