The concentration (in % by volume) of methyl tert-butyl ether (MTBE) was determined in four samples of the same gasoline. What is the average value, and which measurement was the most accurate, compared to the average? $$\begin{array} { c c }
\text { Sample } & \% \text { (v/v) } \boldsymbol { M T B E } \
1 & 5.01 \
2 & 4.95 \
3 & 5.10 \
4 & 5.15
\end{array}$$
A) 5.05, sample 1
B) 5.05, sample 2
C) 5.05, sample 3
D) 5.05, sample 4
E) 5.0525, sample 3

Question

The concentration (in % by volume) of methyl tert-butyl ether (MTBE) was determined in four samples of the same gasoline. What is the average value, and which measurement was the most accurate, compared to the average? $$\begin{array} { c c } 
\text { Sample } & \% \text { (v/v) } \boldsymbol { M T B E } \
1 & 5.01 \
2 & 4.95 \
3 & 5.10 \
4 & 5.15
\end{array}$$
A) 5.05, sample 1
B) 5.05, sample 2
C) 5.05, sample 3
D) 5.05, sample 4
E) 5.0525, sample 3

Quizplus · Accepted Answer

The Answer of The concentration (in % by volume) of methyl tert-butyl ether (MTBE) was determined in four samples of the same gasoline. What is the average value, and which measurement was the most accurate, compared to the average? $$\begin{array} { c c } 
\text { Sample } & \% \text { (v/v) } \boldsymbol { M T B E } \
1 & 5.01 \
2 & 4.95 \
3 & 5.10 \
4 & 5.15
\end{array}$$
A) 5.05, sample 1
B) 5.05, sample 2
C) 5.05, sample 3
D) 5.05, sample 4
E) 5.0525, sample 3

The Concentration (In % by Volume) of Methyl Tert-Butyl Ether Sample % (v/v) MTBE15.0124.9535.1045.15\begin{array} { c c } \text { Sample } & \% \text { (v/v) } \boldsymbol { M T B E } \\1 & 5.01 \\2 & 4.95 \\3 & 5.10 \\4 & 5.15\end{array} Sample 1234​% (v/v) MTBE5.014.955.105.15​

The Concentration (In % by Volume) of Methyl Tert-Butyl Ether $\begin{array} { c c } \text { Sample } & \% \text { (v/v) } \boldsymbol { M T B E } \\1 & 5.01 \\2 & 4.95 \\3 & 5.10 \\4 & 5.15\end{array}$