Answer:
the 3rd one
Step-by-step explanation:
mark me brainliest if it was helpful
Answer:
0.0713 = 7.13% probability that the result is positive.
Step-by-step explanation:
Probability of a positive test:
91% of 1/650(has the disease).
7% of 1 - 1/650 = 649/650(does not have the disease). So

0.0713 = 7.13% probability that the result is positive.
Answer:
b
Step-by-step explanation:
each brick is the exact same size.
(Also can I please have brianliest? I need it to level up!!!)