Ex 13.1, 10 - Chapter 13 Class 11 Statistics
Last updated at April 16, 2024 by Teachoo
Mean deviation about mean - Continuous frequency distibution
Chapter 13 Class 11 Statistics
Concept wise
- Mean deviation about mean - Ungrouped
- Mean deviation about mean - Discrete Frequency
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Mean deviation about mean - Continuous frequency distibution
- Mean deviation about median - Ungrouped
- Mean deviation about median - Discrete Frequency
- Mean deviation about median - Continuous frequency distibution
- Standard deviation and variance - Ungrouped data
- Standard deviation and variance - Discrete frequency (grouped data)
- Standard deviation and variance - Continuous frequency (grouped data)
- Co-efficient of variation
- Indirect questions - Multiplication of observation
- Indirect questions - finding remaining observations
- Indirect questions - Incorrect observation
Transcript
Ex 13.1, 10 Find the mean deviation about the mean for the data Now, ∑128▒𝑓𝑖 = 100 ∑128▒𝑓𝑖 |𝑥𝑖 −𝒙 ̅ | = 1128.8 Mean deviation about mean = (∑▒〖 𝑓_𝑖 |𝑥𝑖 −𝒙 ̅ | 〗)/𝑓_𝑖 = 1128.8/100 = 11.288
