Answer:
65%
Step-by-step explanation:
Given that,
Total fuel = 200000 L
Used fuel = 130,000 L
We need to find the percentage of the used fuel. It can be given by :
So, the required percentage is 65%.
Answer:
With 95% confidence when n equals 44, the population mean is between a lower limit of 33.96 and an upper limit of 40.04
Step-by-step explanation:
Confidence Interval = mean + or - Error margin (E)
mean = 37
sd = 10
n = 44
degree of freedom = n - 1 = 44 - 1 = 43
t-value corresponding to 43 degrees of freedom and 95% confidence level is 2.0165
E = t × sd/√n = 2.0165×10/√44 = 3.04
Lower limit = mean - E = 37 - 3.04 = 33.96
Upper limit = mean + E = 37 + 3.04 = 40.04
95% confidence interval is between 33.96 and 40.04
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Remember that the range is the set of all y-values. Thus, since the minimum of the function is y=-1, then our range is . In interval notation, we use brackets to show what's included and parentheses to show what's not included.
Answer:
16 petunias
Step-by-step explanation:
28/7 = x/4
7x=28*4
7x= 112
x=112/7
x=16