A study found the following parts per billion of nitrosamines in a sample of domestic beers. (a) Construct a frequency distribution of four classes with equal class sizes. (b) Construct another frequency distribution of four classes using unequal class intervals or an open-ended interval for the highest class. (c) Which frequency distribution is preferable? Why?
$$\begin{array} { c c c c }
1.00 & 1.72 & 2.51 & 4.21 \
1.05 & 1.88 & 2.61 & 4.50 \
1.17 & 2.16 & 2.84 & 6.36 \
1.50 & 2.23 & 2.96 & 6.70 \
1.63 & 2.26 & 2.99 & 6.72 \
1.70 & 2.45 & 3.41 & 15.75
\end{array}$$

Question

A study found the following parts per billion of nitrosamines in a sample of domestic beers. (a) Construct a frequency distribution of four classes with equal class sizes. (b) Construct another frequency distribution of four classes using unequal class intervals or an open-ended interval for the highest class. (c) Which frequency distribution is preferable? Why?
$$\begin{array} { c c c c } 
1.00 & 1.72 & 2.51 & 4.21 \
1.05 & 1.88 & 2.61 & 4.50 \
1.17 & 2.16 & 2.84 & 6.36 \
1.50 & 2.23 & 2.96 & 6.70 \
1.63 & 2.26 & 2.99 & 6.72 \
1.70 & 2.45 & 3.41 & 15.75
\end{array}$$

Quizplus · Accepted Answer

The Answer of A study found the following parts per billion of nitrosamines in a sample of domestic beers. (a) Construct a frequency distribution of four classes with equal class sizes. (b) Construct another frequency distribution of four classes using unequal class intervals or an open-ended interval for the highest class. (c) Which frequency distribution is preferable? Why?
$$\begin{array} { c c c c } 
1.00 & 1.72 & 2.51 & 4.21 \
1.05 & 1.88 & 2.61 & 4.50 \
1.17 & 2.16 & 2.84 & 6.36 \
1.50 & 2.23 & 2.96 & 6.70 \
1.63 & 2.26 & 2.99 & 6.72 \
1.70 & 2.45 & 3.41 & 15.75
\end{array}$$

A Study Found the Following Parts Per Billion of Nitrosamines