Two sections have the same mean but the standard

12. Two sections have the same mean but the standard deviation of section 2 is higher than section 1.
Which of the two sections is more homogeneous?
a. Section 1 b. Section 2 c. Both A and B d. None of the above
13. Q1 is 25th percentile as media is to what percentile? 14. Which is implied by a positively skewed scores distribution?

16. a. mode < mean < median b. mode > mean > median
c. median < mode > mean d. none of the above
17. In a frequency distribution, what is the midpoint of the class interval whose lower and upper limits
are 99.5 and 109.5?
18. In a frequency distribution, what is the interval size of the class whose lower and upper limits are 9.5
and 19.5?
a. 11.0 b. 10.0 c. 9.0 d. 5.0
19. The most frequent score in a distribution is the ________.
20. Which is the most stable measure of central tendency? 21. About how many percent of the cases fall between -2SD and +SD in the normal curve? 22. The lower limit of the step 45-49 is ________.
a. 44 b. 44.5 c. 45 d. 49
23. In making the step distribution the first thing to do is:
24. The distance of the scores from the mean is called ________.
25. In order to find out if there is relationship between age and level of intelligence, the measure to be
used is:
26. The counting median when the number of cases is even is ________.
a. average of the two middlemost score b. highest score
c. middlemost score d. range
27. It tells the relative position of a score from the rest of the scores.