Sandeep Garg Statistics Class 11

If you are aiming for , here is the secret recipe:

| Class Interval | Mid-value (x) | Frequency (f) | f × x | |----------------|---------------|---------------|--------| | 0–10 | 5 | 5 | 25 | | 10–20 | 15 | 8 | 120 | | 20–30 | 25 | 12 | 300 | | 30–40 | 35 | 7 | 245 | | 40–50 | 45 | 3 | 135 | | | | Σf = 35 | Σfx = 825 | Sandeep Garg Statistics Class 11