Answer:
Step-by-step explanation:
The confidence interval for population mean is given by :-
Given :
n=23, which is a small sample(n<30), so we use t-test.
Significance level:
Critical value :
Then , the confidence interval for population mean will be :-
Hence, the 95% confidence interval for the population mean is
This is a simple ratio question, but first you need to find the number of non red marbles uses... call it a
Jar Tank
54 a
----- ----
1 6750
so using your multiplication skills the number of non red marbles is
Non red = 54 x 9750
thene the total number of marbles in the tank is Red + Non Red
hope it helps
Answer:
1440
Step-by-step explanation:
Car lowers value 480 each year 480 x 3 = 1440
Hope this helped ! Brainiest ?
a) Match the graph shown with one of the following equations.
b) Which one of the following points lies on the line 3y = 2x - 1?
The answer is (2,1)
Answer:
d
Step-by-step explanation:
because you add 2 3/4 twice and then when you get that you add 2 and 1/4 and that's how you get your awsnser