Plllease answer alll. thaanks 7. Since computation of the standard deviation requires addition, division, and other mathematicaloperations, it should be used for:a. interval-ratio level variablesb. non-continuous variables at any level of measurementc. nominal level variablesd. discrete variables only8. The median cannot be found for variables measured at the nominal level because:a. there is no central tendency.b. the scores cannot be ranked or ordered.c. all of the cases are representativesd. the distribution is skewed.9. Four students have applied to a special program and only one can be accepted. They have taken abattery of 12 tests and all have exactly the same score. The standard deviation of their test scoresare: Student A = 3.12, Student B = 0.27, Student C = 13.45, Student D = 6.45. If consistency ofperformance is a criterion of acceptance, which of the four students should be selected?а. Аb. Вс. Сd. D10. The term squared deviation in the calculation of standard deviation is based on:a. squaring the differences between the scores and the mean (X – X).b. ignoring the signs of the differences between the scores and the mean (X – X).c. subtracting each score from the mediand. subtracting each score from the mode

Name: Plllease answer alll. thaanks 7. Since computation of the standard dev
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Description: Plllease answer alll. thaanks 7. Since computation of the standard deviation requires addition, division, and other mathematicaloperations, it should be used for:a. interval-ratio level variablesb. non-continuous variables at any level of measurement