Task 3: Answer the following question. Be sure to include justification (work and reasoning)
Based upon my sister's age and other genetic factors, Charlotte's risk for Down
Syndrome was only 1 in 350. During the sonogram, the doctors tested for Down
Syndrome by measuring the nuchal translucency. This diagnostic tool has an 80%
sensitivity and a 95% specificity. Charlotte (as a fetus) tested positive for Down
Syndrome. When she tested positive, what was the probability that she would have
Down Syndrome? Warning: You answered this question in the preparation exercise,
but now you know more. Use your new information and Bayes Theorem to update
your answer.
luide vour

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

1/2*qr*rs

step-by-step explanation:

the number 100 represents the number of trials in the experiment.

49/100 represents the experimental probability of the coin landing heads up.

step-by-step explanation:

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.