Question
How many hearts does an octopus
have?Solution
Octopuses have three hearts, which is partially related to their blue blood. Two peripheral hearts pump blood through the gills to collect oxygen, then a central heart circulates this oxygenated blood throughout the body to provide energy to organs and muscles. Additionally, octopuses have 9 'brains' - one central brain for overall control plus eight smaller ones. For comparison:
- Birds and mammals: 4-chambered hearts (two atria and two ventricles)
- Amphibians like frogs: 3-chambered hearts (one ventricle and two atria)
- Fish: 2-chambered hearts (one atrium and one ventricle)
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For the frequency distribution of income (in lakh) of the employees in factory
Class                     1.5-2.5    �...
For the discrete distribution, the Pearson's coefficient of skewness β2 is always:
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If the first, second, and third moment about the origin are 2, 8, and 18 respectively, then third moment about mean is
Which option is WRONG?
If A,B and C are arbitrary events, then P(A ∩ B ∩ C) equals to:
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