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The incorrect statement is that cathode rays travel in straight lines; while they generally do, they can be deflected by electric and magnetic fields, indicating that they do not always travel straight.
For making frequency distribution, the number of classes used depends upon:
For a distribution, mean is 40, median is 40.5 and mode is 41. The distribution is:
Which of the following is the most relevant for deriving a point estimate?
Which of the following is a sources of primary data?
The Pearson's correlation coefficient between following observation
Identify, from the following, the moment used as a measure of skewness?
Which option is WRONG?
If ten coins are tossed simultaneously, then the probability of getting at most I head is:
