Algebra-1

Question Analysis
This question involves calculating the frequency of values meeting the condition "7 hours or more" in a dataset.
The main focus is on identifying values ≥ 7 and summing their frequencies to find the total count.

Key Concept Explanation
"Or More" Frequency: The total number of values that are either equal to a threshold (7 hours) or larger than it. This requires including the threshold value and all larger values in the count.

Step-by-Step Solution
Identify values ≥ 7 in the dataset: 7, 7, 8, 8, 8, 8, 9.
Count these values: 2 occurrences of 7, 4 occurrences of 8, and 1 occurrence of 9.
Sum...