Which one ofthe following dant dant\' ) the speed of the boat\'s propelier in mo
ID: 3044088 • Letter: W
Question
Which one ofthe following dant dant' ) the speed of the boat's propelier in molistions per minute B)the latitude and longitude af.NE# O the number of crew memben te at D)the latitude and longitude oftr ,dpntof ture the Wem diagram to identify the popuilatiom and the sample who zenew A Pupulation: Magazine subscrS Population: Magazine subscriben garine subscribers whe nenerw thes vitunen·ther subscription; Sample nSutittics is the science of conducting aj monitor, study, and repon on a shet e onillect organize, summariznd dnw conclusions from data O solve a system of equations Thr hur basic methods used to abut Mpesteundom, imegular. chuter, nd sutifind sampling Failse 9)True utthe movie they had seen 29damng every 14th custom riming atan abo be an example of systematic sampling pling technique used d on r1,000 responses from 4snrgantimat".et to its alum estimuted that the annual salary of m e 000 per year tam ieru 3) BaExplanation / Answer
Q.25 Correct Answer : (C) The number of crew members in the boat.
Explanation : Note that in rest of the options, (A),(B) and (D), the variables under consideration, can take values on a continuous scale. For eg, in (A), speed of boat's propeller could be a continuous value such as 20.56 mph, 21.22 mph etc. ; in (B), the latitude and longitude of a bot in sea could be any value such as 35.65 degree, 23.34 degree; in (D), the latitude and longitude of boat's port of departure can also be any continuous value as explained for (B). However, in (C), the number of crew members in the boat can not be a value such as 3.45 or 5.56. It can only be 0,1,2,3,4,5,.....etc. Hence, option (C) is correct.
Q.26 Correct Ans. (A) Population: Magazine subscribers; Sample : Magazine subscribers who renew their subscription.
Explanation : By defintion, The “population” includes all members of a defined group that we are studying or collecting information on for data driven decisions, whereas A part of the population is called a sample. It is a proportion of the population, a slice of it, a part of it.
Clearly, in this example, the set- "Magazine subscribers who renew their subscription" is a subset of a larger set - "Magazine subscribers" because only some of the all "Magazine subscribers" will renew their subscription. Hence "Magazine Subscribers" is the population, and "Magazine subscribers who renew their subscription" is sample. Hence, option (A) is correct.
Q.27 Correct Ans. (B) Collect, organize, summarize, analyze, and draw conclusions from data.
Explanation : Option (C) is definitely not describing what statistics is. So it is ruled out. Option (A) is incorrect because we dont monitor things in statistics. After some processes/phenomenon have occured, we collect data on it, as statisticians. Option (D) is incorrect because it is an incomplete description of the "statistics". There are missing components such as collecting data. Also, doing experimtent is not part of statistics. Therefore, option (B) is correct. It correctly and completely describes what Statistics is.
Q. 28 Correct Answer : (A) False.
Explanation : Four basic methods of obtaining sample are : Simple random sampling (or random sampling), Stratified Sampling, cluster sampling and systematic sampling. There is nothing such as "irregular sampling" defined under the basic methods of sampling. So option (A) is correct.
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