1. A correlation coefficient of r = 0 was computed between IQ and weight. Which of the following is TRUE? I. The point in scatter diagram of these variables does not fall along a straight line. II. IQ and weight are negatively correlated.

a.

I only

b.

II only

c.

both I and II

d.

neither I nor II

1. Cinderella and Snowhite took the same exam in two different years. The scores in the exam was given in terms of percentile rank. If Cinderella's score was 95 and Snowhite got 92, which of the following implications is the BEST?

a.

Both definitely passed the said exam.

b.

Both got high scores in the said exam.

c.

Both belong to the 10 % highest scorers.

d.

Cinderella performed better than Snowhite because she has a higher score.

1. If 3rd quartile of the scores of students in a distribution is 70, what percent of students have a score higher than 70?

a.

1%

b.

3%

c.

25%

d.

30%

1. It is a method of allocation where the subgroup sizes do not necessarily affect the sample size taken from each stratum/cluster.

a.

Proportional Allocation

b.

Equal Allocation

c.

Stratified Sampling

d.

none of the choices

1. It is constructed by joining the plotted points for the class mark and the corresponding frequencies.

a.

Histogram

b.

Frequency Polygon

c.

Pie graph

d.

None of the choices