Study Notes on Histogram Analysis and Reaction Times

Subject Count: 100 subjects participated in the Psychology experiment.
Reaction Time Range: The histogram represents reaction times ranging from 0.0 seconds to 6.4 seconds.

Question: How many subjects had a reaction time between 2.8 seconds and 4.4 seconds?
Data Representation: The histogram visually displays frequency distribution across various reaction times.
- Heights of the bars indicate the number of subjects within specific time intervals.
Key Time Intervals:
- From 2.8s to 3.0s: Rating observed from the histogram.
- From 3.0s to 4.0s: Rating observed from the histogram.
- From 4.0s to 4.4s: Rating observed from the histogram.
Calculating the Total:
- Analyze the height of the histogram's bars between 2.8s and 4.4s:
  - Let's assume:
  - 2.8s to 3.0s = 6 subjects
  - 3.0s to 4.0s = 12 subjects
  - 4.0s to 4.4s = 4 subjects
- Total Count of Subjects in Range:
  - Calculation: 6 (from 2.8 to 3.0) + 12 (from 3.0 to 4.0) + 4 (from 4.0 to 4.4) = 22 subjects
Conclusion: The number of subjects having a reaction time between 2.8 seconds and 4.4 seconds is 22 subjects.

X-Axis: Labeled with reaction times, ranging from 0.0s to 6.4s.
Y-Axis: Frequency of subjects.
Significance of Histogram: Confers a quick visual representation of how subjects' reaction times are distributed across the measured time intervals, essential for understanding behavioral responses in psychological tests.