1. Prove that the set of all decimal numbers in the interval (0,1) that end in a string of zeros is countably infinite. (10  points) 2. Is the subset relation A R B if A is a subset of B, a partial order on the Powerset of a given set S? Is it a total order? Give reasons for your answer.  (10 points)

1. Prove that the set of all decimal numbers in the interval (0,1) that end in a string of zeros is countably infinite. (10  points) 2. Is the subset relation A R B if A is a subset of B, a partial order on the Powerset of a given set S? Is it a total order? Give reasons for your answer.  (10 points)

1. Prove that the set of all decimal numbers in the interval (0,1) that end in a string of zeros is countably infinite. (10  points) 2. Is the subset relation A R B if A is a subset of B, a partial order on the Powerset of a given set S? Is it a total order? Give reasons for your answer.  (10 points)

We can attribute the variability in scores between Test A and Test B to meaningful differences in the examinees when…

Pick the correct answer from the choices below.

A researcher is hoping to show good discriminant validity for an IQ test by correlating IQ scores with scores from an extraversion scale. Which correlation coefficient would make the researcher happiest?

A standard score of 125 is equivalent to a z-score of approximately…

A parent is concerned that his child’s Full Scale IQ on the WISC-V has dropped by a few points since the last evaluation using the same test.  Which of these concepts will be helpful to the school psychologist in explaining the discrepancy?

A teacher states at a meeting in May that her student increased 13 percentile rank units in reading comprehension since September.  How can this change be understood?