Algebra-1

Question Analysis
This question involves reclassifying students between intervals and determining the new total number of students in the histogram.
The main focus is on understanding that transferring data between intervals does not change the total number of data points.

Key Concept Explanation
Total Frequency Invariance: When data points are moved from one interval to another, the total number of data points remains unchanged. Only individual interval frequencies are adjusted, not the sum.

Step-by-Step Solution
Calculate the original total number of students: 22 + 15 + 8 + 3 = 48.
Recognize that moving students between intervals does not change the total (subtracting 4 from one interval and adding 4 to another cancels out)....