Which data collection tool is used to collect data for a histogram by counting occurrences?

Which data collection tool is used to collect data for a histogram by counting occurrences?

• A. Tally Sheet
• B. Check Sheet
• C. Run Chart
• D. Flow Chart

Answer: (A)

To prepare data for a histogram, you need to count how many observations fall into each category or interval. A tally sheet is built for this purpose: as you observe each item, you record a tally mark in the column for the appropriate category. Once data collection is done, you total the tallies to get the frequency for every bin, and those frequencies become the heights of the bars in the histogram. This method is direct and minimizes counting errors during collection, making it the natural tool for gathering data by counting occurrences. A check sheet is a broader data-collection form that can be used to record various types of data, not just counts by category. A run chart shows how a metric changes over time, which isn’t the same as compiling a frequency distribution for a histogram. A flow chart maps steps in a process, not data collection.

To prepare data for a histogram, you need to count how many observations fall into each category or interval. A tally sheet is built for this purpose: as you observe each item, you record a tally mark in the column for the appropriate category. Once data collection is done, you total the tallies to get the frequency for every bin, and those frequencies become the heights of the bars in the histogram. This method is direct and minimizes counting errors during collection, making it the natural tool for gathering data by counting occurrences.

A check sheet is a broader data-collection form that can be used to record various types of data, not just counts by category. A run chart shows how a metric changes over time, which isn’t the same as compiling a frequency distribution for a histogram. A flow chart maps steps in a process, not data collection.