Answer:
c = f + 2
Step-by-step explanation:
Each time there is a new figure ( f ), two circles ( c ) are added.
Answer:
1) 6 feet
2) 38 feet
3) at 1.5 seconds
4) 42 feet
5) in 3.12 seconds
Step-by-step explanation:
Answer:
E(x)=0.15
V(x)=0.3075
S(x)=0.5545
Step-by-step explanation:
The mean of a discrete variable is calculated as:

where
are the values that the variable can take and
are their respective probabilities.
So, if we call x the number of defective transistors in cartons, we can calculate the mean E(x) as:

Because there are 0 defective transistor with a probability of 0.92, 1 defective transistor with a probability of 0.03, 2 defective transistors with a probability of 0.03 and 3 defective transistors with a probability of 0.01.
At the same way, the variance V(x) is calculated as:

Where 
So, the variance V(x) is equal to:

Finally, the standard deviation is calculated as:
