Answer and Step-by-step explanation:
According to the situation the solution is shown below:-
The expected value is

The standard deviation is
= $3
The sample distribution of the sample standard deviation is

After solving the above equation we will get
= 0.5
Basically we applied the applied formula so that each part could be determined
I need poins sorry i cant answer :)
Answer:
14
Step-by-step explanation:
= 1/4(56)
= 14
step by step
Well the volume of dirt she needs to remove is equal to length*width*height=6.2*4.9*0.225=6.8355
Now let's find how many bags she needs.
To solve for this, simply divide room in bags from total room.
6.8355/0.87=7.857
Thus Zoe has barely enough, but enough bags.