Question

temperature
on how many days was the temperature more than 49°f?

Explanation:

Step1: Identify relevant bars

We need bars for temperatures above 49°F.

Step2: Sum up frequencies

Sum frequencies of 50 - 54, 55 - 59, 60 - 64, 65 - 69. That is $3 + 7+6 + 3$.
$3+7 + 6+3=19$

Answer:

19