Class 10 Maths - Statistics Test
Q1. Calculate the mean marks from the following data:
| Marks | Number of Students (Frequency) |
|---|---|
| 0 - 10 | 5 |
| 10 - 20 | 8 |
| 20 - 30 | 12 |
| 30 - 40 | 10 |
| 40 - 50 | 5 |
Use class midpoints and frequency to calculate mean.
Q2. Calculate the median marks from the above data.
Show all calculation steps including cumulative frequency and median class.
Q3. Identify the modal class and calculate the mode using the formula:
Mode = l + [(f1 − f0) / (2f1 − f0 − f2)] × h
Define each symbol used in the formula.
Q4. If the median of a data set is 21, find the new median if each number is increased by 5.
All the best! You can write your answers in your notebook or a separate answer sheet.
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