Answer:
Step-by-step explanation:
Answer: the probability that a person who tested positive actually has TB is 0.64
Step-by-step explanation:
lets say
T : has tuberculosis
+ : test results +ve
- : test result is -ve
so given that
P(+ITc) = 0.008
P(-ITc) = 0.15
P(T) = 50/3000 = 1/60
P(Tc) = 1 - P(T) = 1 - 1/60 = 59/60
Now required probability
= P(TI+)
P(T∩+) / P(+)
= P(T) × P(+IT) / [[P(T) × P(+IT)] + [(P(Tc) × P(+ITc)]
= P(T) × {1-P(-IT)] / [[P(T) × [1-P(-IT)] + [(P(Tc) × P(+ITc)]
WE SUBSTITUTE
= { 1/60 × (1-0.15) } / [1/60 × (1 - 0.15)] + [(59/60) × 0.008]
= (0.0167 × 0.85) / [(0.0167 × 0.85) + (0.9833 × 0.008)]
= 0.01417 / 0.02206
= 0.6423 ≈ 0.64
∴ the probability that a person who tested positive actually has TB is 0.64
5/16 inches, because if you look on a ruler, 5/16 inches is much longer
Answer:
s = -1
Step-by-step explanation:
7 = -10s -3 <== add 3 to both sides
+3 + 3
10 = -10s <== divide both sides by -10
/-10 /-10
-1 = s
Final answer: -1 = s or s = -1
Hope this helps!
Answer:
C
Step-by-step explanation:
4x-8
Hope I helped. Please mark brainliest. Have a good day!
