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Preeti Dabral 3 years ago
The properties of Karl Pearson’s Coefficient of Correlation are:
- Karl Pearson’s Correlation coefficient r has no unit. It is a pure number. It means a unit of measurement is not a part of r. It is independent of the origin and scale.
- The value of the correlation coefficient lies between {tex}- 1 \leq r \leq 1{/tex}. If the value of r lies outside this range, it indicates there is some error in the calculation.
- A negative value of r indicates an inverse relation. A change in one variable is associated with change in the other variable in the opposite direction.
- If r is positive it indicates a direct relation and the two variables move in the same direction.
- The converse of the theorem,i.e.,r=0, is not true, that is uncorrelated variables and need not necessarily be independent. Uncorrelation between the variables X and Y simply imply the absence of a linear relationship between them.
- Therefore, if the data is too large, step deviation method is used, which makes the calculation of correlation coefficient easy.
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Dhwani Chopda 🌸 3 years ago
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Dhwani Chopda 🌸 3 years ago
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Posted by Jayesh Labana 3 years ago
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Preeti Dabral 3 years ago
Contemporary Indian paintings are more realistic and understandable, due to the information available for the people who view.
Since the world has changed a lot, new generation wants to get their ideas painted in their favourite format. Instead of searching and analysing the ideas in the old style of paintings.
Modern paintings can easily be understood, with the ideas symbolised.
Posted by Account Deleted 3 years ago
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Preeti Dabral 3 years ago
Even though Indian receives abundant rainfall, it is still a thirsty land. This is because of the following reasons:
- Rainfall is not uniform in all the places throughout the country. Some areas have more rainfall and some receive scanty rainfall.
- Due to global warming and the consequent rise in temperature, there is a tendency for the quick evaporation of water, making the climate dry and hot.
- No sufficient measures have been adopted by the government to build water reserves and make facilities for rainwater harvesting.
- The Rapid growth of population, urbanization and changing lifestyle have posed a serious threat to water security.
- Low public consciousness about the overall scarcity and economic value of water results in its wastage and inefficient use leading to scarcity.
- Water conservation policies and water resources projects are implemented improperly without giving due consideration to optimum utilization and environmental sustainability.
Posted by Shubham Mishra 3 years ago
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Preeti Dabral 3 years ago
Monarchy, political system based upon the undivided sovereignty or rule of a single person. The term applies to states in which supreme authority is vested in the monarch, an individual ruler who functions as the head of state and who achieves his position through heredity. Succession usually passes from father to son or follows other arrangements within the family or the monarchical dynasty.
Sanjay .S 3 years ago
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Preeti Dabral 3 years ago
The principle of completeness implies that the message must be complete, which means that it should convey all the information required by the receiver. Nothing which may be required by the receiver should be left out of the message.
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M.S.Bhati Bhati 3 years ago
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Posted by Anjali Kumari 3 years ago
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Preeti Dabral 3 years ago
The name of the molecule made up of three atoms of Oxygen is Ozone and its formula is O3.
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Preeti Dabral 3 years ago
In the background with a garden and a single tree a serene and peaceful atmosphere was created by the painter. It shows that Nizam -Ud-Din is lost deeply into the music by his facial expression and by the posture of his body.
Akansha Choudhary 2 years, 9 months ago
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Muhammad Amaan Rahman 𝔸𝕄𝔸𝔸ℕ 𝕄𝕌ℍ𝔸𝕄𝕄𝔸𝔻 3 years ago
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Preeti Dabral 3 years ago
इन सब से दूर होकर भक्ति की भावना में लीन होने के लिए कबीरदास जी कहते हैंl मीरा का काव्य जहाँ एक तरफ कृष्ण-भक्ति में एकनिष्ठ होकर अपनी मुक्ति का मार्ग खोजने का आख्यान है वहीं दूसरी तरफ एक नारी के शाश्वत दुःखों का गायन भी है।
Muhammad Amaan Rahman 𝔸𝕄𝔸𝔸ℕ 𝕄𝕌ℍ𝔸𝕄𝕄𝔸𝔻 3 years ago
Posted by Mohit Pal 3 years ago
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Preeti Dabral 3 years ago
किसी भी ध्वनि को लिखने के लिए जो चिह्न लिखे जाते हैं, उसे ही लिपि कहते हैं। हर भाषा की सबसे छोटी इकाई अक्षर होता है। इन अक्षरों से ही अनेक लिपियाँ बनती हैं।
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