30= 20% of ?
30= 20/100 (x)
30= .2 (x)
x=150
150 kids are at the shcool
Answer:
Diagram 2= 5
Diagram 3=10
Diagram 4= 15
Diagram 8 would be 35
Step-by-step explanation:
Answer:
4 by 9 should be the answer
Step-by-step explanation:
N/A

which follows from the definition for expected value,

where

is the probability density function for

.