Question

this data is shown in a bar graph, which description accurately represents the bars? the graph has five bars of equal height. the bars range from tallest for very high concentration to shortest for very low concentration. the bar for very low concentration is twice the height of the bar for medium concentration. the bar for very high concentration is five times the height of the bar for very low concentration.

Explanation:

Step1: Analyze option A

The values are \(2\), \(8\), \(15\), \(22\), \(30\). They are not equal, so the bars can't be of equal height.

Step2: Analyze option B

The order from tallest to shortest should be very low (\(30\)), low (\(22\)), medium (\(15\)), high (\(8\)), very high (\(2\)). So this option is wrong.

Step3: Analyze option C

The bar for very low concentration is \(30\), and the bar for medium concentration is \(15\). Since \(30 = 2\times15\), this option is correct.

Step4: Analyze option D

The bar for very high concentration is \(2\), and the bar for very low concentration is \(30\). Since \(2
eq5\times30\), this option is wrong.

Answer:

The bar for very low concentration is twice the height of the bar for medium concentration.