A zookeeper created the following stem-and-leaf plot showing the number of tigers at each major zoo in the country: \left| \quad \begin{matrix} 0 \vphantom{\Large{0}} \\ 1 \vphantom{\Large{0}} \\ 2 \vphantom{\Large{0}} \\ 3 \vphantom{\Large{0}} \\ 4 \vphantom{\Large{0}} \\ \end{matrix} \quad \right| \quad \begin{matrix} 7& \vphantom{\Large{0}} \\ 1&4&8& \vphantom{\Large{0}} \\ 5&5&5&6&7&7& ;9& \vphantom{\Large{0}} \\ \vphantom{\Large{0}} \\ \vphantom{\Large{0}} \\ \end{matrix}
∣
∣
∣
∣
∣
∣
∣
∣
∣
∣
∣
​

00
10
20
30
40
​

∣
∣
∣
∣
∣
∣
∣
∣
∣
∣
∣
​

7
1
5
0
0
​

0
4
5
​

8
5
​

0
6
​

7
​

7
​

9
​

0
​

Key: 2\,|\,5=252∣5=252, vertical bar, 5, equals, 25 tigers
What was the smallest number of tigers at any one zoo?
tigers