Answer:
16 and 12
Step-by-step explanation:
16+12 = 28
16-12=4
Answer:
20
Step-by-step explanation:
You need to add all four then divide the answer by 4.
Hope this helps.
Answer:
An invoice was paid an average of 20 days after it was received.
Mean =
Standard deviation =
Now we are supposed to find what percent of the invoices were paid within 15 days of receipt i.e.P(x<15)
Formula :
At x = 15
Substitute the values
Refer the z table for p value
So, p value = 0.1587
So, 15.87% of the invoices were paid within 15 days of receipt
Step-by-step explanation:
It's 243 because all you have to do is 3x3 which is 9 then do 3x3x3 which is 27. once you've got those two terms you multiply the two terms together which will give you a total of 243