The mean and standard deviation of the scores are 75 and 9.5 respectively.
The z-score is a means to find the probability of getting a particular score. This is calculated to be:
where x is the score, μ is the mean, and σ is the standard deviation.
To be a part of the top 2.5 percent, the probability is:
The z-score for this probability, that is, P
Answer:
Step-by-step explanation:
The volume of cone is given by:
where is the radius of the base and
is the height of the cone.
We need to solve for
we have
Multiplying both sides by 3 to remove
⇒
⇒
dividing both sides by
⇒
⇒
Taking square root both sides:
⇒
⇒
∴
Step-by-step explanation:
1) c
2) c
use the value of slope and the coordinates and substitute in the equation of line.
