Back-to-Back Stem-and-Leaf Diagram and Height Analysis
Back-to-Back Stem-and-Leaf Diagram and Height Analysis
Secondary 2
The heights, in cm, of students from a class are shown below.
Boys | \(165\) | \(175\) | \(169\) | \(174\) | \(166\) | \(171\) | \(180\) |
\(175\) | \(168\) | \(182\) | \(170\) | \(177\) | \(178\) | \(169\) | |
Girls | \(149\) | \(159\) | \(166\) | \(161\) | \(152\) | \(175\) | \(160\) |
\(157\) | \(158\) | \(180\) | \(158\) | \(168\) | \(154\) | \(160\) |
- Represent these two sets of data by a back-to-back stem-and-leaf diagram.
- Find the probability that a student is taller than \(170\) cm.
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Answer:(ii) \(\frac{5}{14}\)
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