- AHindi
- BScience
- CSocial Science
- DEnglish
Step-by-Step Solution
Change (Term 2 − Term 1): Maths , English , Science , Hindi , Social Science . The biggest rise is in Science.
Answer: B) Science
The double bar graph shows Kritika's marks in Term 1 and Term 2. In which subject did her marks improve the most?
Class 7Data HandlingData Handling
Key idea: When to use which
- **Mean**: when values are well-spread without extreme outliers (test scores, heights).
- **Median**: when there are extreme values (incomes, house prices) that would skew the mean.
- **Mode**: when you care about the most common value (most common shoe size, most popular subject).
In news headlines: 'average income' usually means mean (which can be misleading); 'median income' is often more honest.
- **Median**: when there are extreme values (incomes, house prices) that would skew the mean.
- **Mode**: when you care about the most common value (most common shoe size, most popular subject).
In news headlines: 'average income' usually means mean (which can be misleading); 'median income' is often more honest.
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More Class 7 Data Handling practice
Priya paints the faces of a cube as shown in its net, and writes a number on each face.…The cards show the monthly pay of all seven people working at a bakery in Pune. A…A museum in Kolkata counted its visitors from Monday to Friday. The mean was 300…Which statistic is defined as the value that appears most often in a data set?For the data 2, 4, 4, 6, 9: which is correct about its mean, median, and mode?