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66. Which of the following is not an input device?
Printer
Keyboard
Mouse
Light Pen
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67. ------- errors are made when we accept a null hypothesis which is not true
Type ll
Type I
Both (A) and (B)
None of these
68. If the probability of inclusion of every unit of the population in the sample is equal, it is called
Simple Random Sampling
Stratified Random Sampling
Systematic Sampling
69. Which one of the following is not included under the characteristics of a useful hypothesis?
Sampling
Empiricism
Related with existing theories
Related with available techniques
70. If the correlation is not perfect, it is known as
Perfect correlation
Limited correlation
Linear correlation
Non-Linear correlation
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