From my research, the available data in the problem is as follows:
<span>No. of Heads | Probability
0 1/16
1 4/16
2 6/16
3 4/16
4 1/16
To calculate the average amount spent by a student in an hour:
[(0 * 1/16) + (1 * 4/16) + (2 * 6/16) + (3 * 4/16) + (4 * 1/16)] * 2
= 4
Therefore, the library earns $4 per student each hour</span>
Answer:
The study is an observational study.
Step-by-step explanation:
Observational study: In research methods, the term "observational study" is determined as one of the different studies that are being conducted by the researchers to observe or study the effects of a specific risk factor, treatment, diagnostic test, or some other intervention in the absence of an effort to change which participants are being exposed and which is not being exposed to it.
Types: Cohort study and case-control study.
In the question above, the given statement represents the observational study.
Answer:
yes
Step-by-step explanation:
1/4 = 0.25
Answer:
We were given the equation of a rainbow, which follows a parabolic path, which is
By comparing to the vertex form,
We have the vertex at (h,k)=(1,6)
Since a=-0.1<0, the parabola opens down.
At y-intercept, x=0.
Step-by-step explanation: