Qualitative vs Quantitative Data

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Presentation transcript:

Qualitative vs Quantitative Data

Qualitative vs Quantitative Data Qualitative Data Overview: Deals with descriptions. Data can be observed but not measured. Colors, textures, smells, tastes, appearance, beauty, etc. Qualitative → Quality Quantitative Data Deals with numbers. Data which can be measured. Length, height, area, volume, weight, speed, time, temperature, humidity, sound levels, cost, members, ages, etc. Quantitative → Quantity

Example 1: Oil Painting Qualitative data: *red/green color, gold frame *smells old and musty *texture shows brush strokes of oil paint *peaceful scene of the country *masterful brush strokes Quantitative data: *picture is 10" by 14” with frame 14" by 18” * weighs 8.5 pounds surface area of painting is 140 sq. in. *cost $300

Example 2: Latte Qualitative data: *robust aroma *frothy appearance * strong taste *glass cup Quantitative data: *12 ounces of latte *serving temperature 1500 F. *serving cup 7 inches in height *cost $4.95

Example 3: Freshman Class Qualitative data: *friendly demeanors *civic minded *environmentalists *positive school spirit Quantitative data: *672 students *394 girls, 278 boys *68% on honor roll *150 students accelerated in mathematics

Make one qualitative observation about the picture above. Explain why this is a qualitative observation. Make one quantitative observation about the picture above. Explain why this is a quantitative observation.

Make one qualitative observation about the picture above. Explain why this is a qualitative observation. Make one quantitative observation about the picture above. Explain why this is a quantitative observation.

Observation & Inference

Observations Any information collected with the senses. The skill of describing scientific events.

Inference Conclusions or deductions based on observations . The process of drawing a conclusion from given evidence.

Tracks like these are common in parts of New England and in the southwestern United States. What do you OBSERVE? What can you INFER?

Now what do you think?

Infer what happened based on your observations.

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