1/2 because once you simplify and multiply and divide you get your answer
Answer:
Cohort study
Step-by-step explanation:
The study described above is closely related to a cohort study in that Cohort studies mainly observes the participants who might or might not have been exposed to a particular effect or drug, in this case the oral contraceptive and bacteriuria development. The effect of exposure is observed for a certain period time usually called the follow-up period. Conversely, experimental study will require that participants are divided into groups with one group being exposed to the treatment while the other will be the placebo.This isn't the case in the study described above, hence, it is closely related to a cohort study.
Answer:

Step-by-step explanation:

Answer:
{PP, PR, RP, RR}
Step-by-step explanation:
Given that:
Passenger vehicle = P
Recreational vehicle = R
For each of the next two vehicles :
Sample space :
_____ P ______ R
P ___ PP _____ PR
R ___ RP _____ RR
{PP, PR, RP, RR}
B.) Tree diagram can be found in attached picture
Answer:
1. 8.5 x 10^8
2. 93/10000 - 4 x 10^12
3. 9.95 x 10^12
Step-by-step explanation: