Question
Which of the following are the characteristic features
of an Insect?ÂSolution
- A body divided into three parts (head, thorax and abdomen)
- Three pairs of legs
- Usually one pair of antennae and a pair of compound eyes (a few exceptions to these characteristics are found)
- Usually two pairs of wings (absent in many insects such as lice, fleas, ants; flies have one pair of wings
- Three pairs of legs
For the given figures of production of a sugar factory, the estimate of the production for 1976 using straight line trend with origin at the year 1972 b...
The grouped data for the observations are
Class:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1-3Â Â Â Â Â Â Â Â Â 3-5Â Â Â Â Â Â Â Â Â 5-7
Two data sets of sizes 6 and 9 have standard deviation 3 and 4, respectively, and arithmetic means 4 and 4, respectively. The standard deviation of com...
 X and Y are independent normal variables with mean 50 and 80 respectively and standard deviation as 4 and 3 respectively. What is the distribution o...
Recession in industry is associated with the:
The first four moments of a distribution about the origin are -1.5,17,-30 and 108. The third moment about the mean is:
If mean and mode of the distribution is 32 and 21, then the distribution:
