Answer:
Step-by-step explanation:
Given that Samuel Morse suggested in the nineteenth century that the letter "t" made up 9% of the English language. we can assume this is still correct.
Sample size n =1000
Assuming right we find no of t's would be binomial with p = 0.09
a) Expected sample percentage = 9%
b) Standard error =
Expected numbers in 1000 letters book
=
Answer:
C
Step-by-step explanation:
None really
Answer:
Step-by-step explanation:
Multiply both numbers by 10 so that there are no complicated decimals to work with but you must make sure to multiply both sides by the same amount to keep the equation from changing value.
Wastewater is filling the barrel at 11 quarts per hour, meaning that after 1 hour, 11/12 of a barrel will be full.
How many hours will pass before 120 barrels are full?
(Try to come up with an equation for this, if you don't know, ask me in the comments and I'll help you out further~)