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
let there are x number of trees
Justus samples 3 oranges from one tree
Number of oranges he samples from x trees =3x
Extra oranges =50
total number of oranges = 3x+50
as a function f(x) we can write it as
f(x) =3x+50
yes you are correct evreything is correct
Answer:
2,840
Step-by-step explanation:
since the three is in the tens place and 7 in single <em>if 5 and up round up fi 4 and below leave it alone you</em> will then take the 3 and round up to give you 2,840
Answer:
81
Step-by-step explanation:
Its a perfect square and 27*3=81