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
The null hypothesis in ANOVA one-way classification, the study of the variances due to k different sources, is:
For the price -quantity chart
the Laspeyres price in...
If the difference between the rank of the 4 observations are 2.5, 0.5, -1.5, -1.5, then Spearman's rank correlation coefficient equals to:
If each observation in a data set for number of employees in different divisions is doubled then the coefficient of quartile deviation:
If Arithmetic mean and coefficient of variation of x are 10 and 40 respectively, then the variance of y = 10 – 2x is:
In one way ANOVA, σ2 is estimated by:
For making frequency distribution, the number of classes used depends upon:
The second quartile for the following data 38, 39, 40, 52, 59, 67, 73, 77, 149, 248 is:
If the odds in favour of any random event A are 5 : 6, then the odds against the event are:
If the occurrence of events follows Poisson Process with mean rate λ, then inter-occurrence time of events will follow:
