Answer:
[tex]70\%[/tex]
Step-by-step explanation:
From the given stem and leaf plot, we can write the following data set:
3.7, 3.7,3.8,3.9,4.0,4.1,4.2,4.5,4.6,4.9,5.2,5.4,5.4,5.8,5.9,5.9,6.1,6.1,6.5
We have 20 data sets.
The number values that are below 5.8 are :
3.7, 3.7,3.8,3.9,4.0,4.1,4.2,4.5,4.6,4.9,5.2,5.4,5.4,5.8
There are 14 of them.
Therefore there are 14 out 20 that are less than or equal to 5.8
That is
[tex] \frac{14}{20} = \frac{7}{10} = 0.7[/tex]
As a percentage, there are:
[tex]0.7 \times 100\% = 70\%[/tex]