Answer:
y = 218
Step-by-step explanation:
Mean = (Sum of all numbers)/(How many numbers present)
27 = (20 + 2y + 25 + y + 30)/27
27 = (3y + 75)/27
3y + 75 = 729
3y = 729 - 75
3y = 654
y = 218
Answer:
95% Confidence Interval for the mean price of regular gasoline in that region
(3.61005, 3.76995)
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
<em>Given sample size 'n' =40</em>
<em>mean of the sample x⁻ = 3.69 $</em>
<em>standard deviation of the sample "s' = 0.25 $</em>
We will use students 't' distribution
degrees of freedom
ν = n-1 = 40-1 =39
<u><em>Step(ii):-</em></u>
95% Confidence Interval for the mean price of regular gasoline in that region
(3.69 - 0.07995 , 3.69 + 0.07995)
(3.61005, 3.76995)
<u>Final answer</u>:-
95% Confidence Interval for the mean price of regular gasoline in that region
(3.61005, 3.76995)
Y = -5/2 + 5x/4. at least that’s what i got
Answer:
No
Step-by-step explanation:
Not all kites are a square.