Answer:
a) 0.58
b) 0.0464
Step-by-step explanation:
A= The person is sick
B= The give a positive result
P(A)=0.03
P(A')=1-P(A)=1-0.03=0.97
P(B|A)=0.9
P(B|A')=0.02
P(B)=P(B|A)P(A)+P(B|A')P(A')=0.9*0.03+0.02*0.97=0.0464
![P(A|B)=\frac{P(B|A)P(A)}{P(B)}=\frac{0.9*0.03}{0.0464}=0.58](https://tex.z-dn.net/?f=P%28A%7CB%29%3D%5Cfrac%7BP%28B%7CA%29P%28A%29%7D%7BP%28B%29%7D%3D%5Cfrac%7B0.9%2A0.03%7D%7B0.0464%7D%3D0.58)
Answer:
v
Step-by-step explanation:
Uhm, 2 miles every 2/5 hours? :joy:
It says "Laura jogs at a unit rate of 2 miles every 2/5 hours"
and then says "What is her unit rate"
Sooooo LoL
Answer:
x=9 or x=-3
Step-by-step explanation:
add one to both sides
take square root of both sides
since (x+3)= + or -6, the add 3 to both sides and subtract 3 to both sides does not matter
I don't think there should be a subtract one from both sides step, but i'm not sure