In a diving competition, each diver has a `20%` change of a perfect dive. The first perfect dive of the competition, but no subsequent dives, will receive a perfect score. IF Janet is the third diver to dive, what is her chance of receiving a perfect score?
(Assume that each diver can perform only one dive per turn)

The velocity of a diver just before hitting the water is -10.1 m//s , where the minus sign indicates that her motion is directly downward. What is her displacement during the last 1.20 s of the dive ?

(1) To elaborate briefly on these characteristics and dimensions that the author is talking about - NRMs are general tests intended to be used to classify students by percentile for measuring either apitude or proficiency for admissions into or placement within a program. (2) Contrastingly, the CRM, such as a locally produced achievement tese, measures absolute performance that is compared only with the learning objective, hence a perfect score is theoretically obtainable by all students who have a mastery of the pre-specified material, or conversely, all students may fail the test. (3) In most of these books, the authors classify a measurement strategy as either norm-referenced (NRM ) or criterion-referenced (CRM). (4) Another author points out how the type of interpretation that an NRM offers is the reflative performance of the students compared with that of the students compared with that of all the others resulting in, ideally, a bell curve distribution. (5) Numerous books on constructing and using language tests have been written by various authors. (6) CRMs, on the other hand, are more specific, achievement or diagonstic tests intended to be used for motivating students by measuring to what percent they have achieved mastery of the thought or learned material. (7) One of the authors clearly delineates the differences of these two types by focusing on the categories of "test characteristics" and "logistical dimensions." Which of the following should be the THIRD sentence after rearragement ?

(1) To elaborate briefly on these characteristics and dimensions that the author is talking about - NRMs are general tests intended to be used to classify students by percentile for measuring either apitude or proficiency for admissions into or placement within a program. (2) Contrastingly, the CRM, such as a locally produced achievement tese, measures absolute performance that is compared only with the learning objective, hence a perfect score is theoretically obtainable by all students who have a mastery of the pre-specified material, or conversely, all students may fail the test. (3) In most of these books, the authors classify a measurement strategy as either norm-referenced (NRM ) or criterion-referenced (CRM). (4) Another author points out how the type of interpretation that an NRM offers is the reflative performance of the students compared with that of the students compared with that of all the others resulting in, ideally, a bell curve distribution. (5) Numerous books on constructing and using language tests have been written by various authors. (6) CRMs, on the other hand, are more specific, achievement or diagonstic tests intended to be used for motivating students by measuring to what percent they have achieved mastery of the thought or learned material. (7) One of the authors clearly delineates the differences of these two types by focusing on the categories of "test characteristics" and "logistical dimensions." Which of the following should be the FIRST sentence after rearragement ?