Answer:
z-score for 900 points = -4
Step-by-step explanation:
To find the z scores
z=(x-mean)/standard deviation
so
z=(900-1500)/150
z= -600/150
Answer:
289.3 square units
Step-by-step explanation:
Hi!
Let's put in the value of a.
10500/100
Solve
10500/100 = 105
number of security staff = 105
Hope this helps! :)
-Peredhel
