6C Secure https/ dep 19200282 Weston Conn & : D Newlab Westcom Counn O (1)Vo·Tub
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6C Secure https/ dep 19200282 Weston Conn & : D Newlab Westcom Counn O (1)Vo·Tube @layn. IA SA on- gr M. de oem BVenCamdet, een-Co- OuKonAesen You have 14 days keft in your Cengage t namited satscnsson trat Leam more for ess with access to over 22,000 ebooks and digtal leamng products Upgrade Today Government agencies carefully monitor water quality and its effect on wetlands (Reference: the concentration of nitrogen in water draining nitrogen concentration (miligrams of nitrogen per liter of water) was determined for each sample, Environmental Protection Agency Weeland Report EPA 832-R-93-005). Of particular concern is from fertiized lands. Too much nitrogen can kill fish and wildife. Tmenty-eight samples of water were (a) Identify the variable. 0 nitrogen concentration in the entire lake nitrogen concentration O amount of water 0 the 28 samples (b) Is the variable quantitative or qualitative? O neither quantitative nor qualitative O both quantitative and quaitative O qualitative 0 quantitative (c) What is the implied populátion? the 28 samples that were examined all the fish in the lake all lakes the entire lake O Type here to searchExplanation / Answer
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Q - 7 -
(a) THE CORRECT ANSWER IS OPTION B : NITROGEN CONCENTRATION
The random variable is always decided in a way that it can take the ranom value as per the facts of the experiment. Hence, as each litre of water can have a varied amount of nitrogen concentration, our variable is nitrogen concentration in each sample.
(b) THE CORRECT ANSWER IS OPTION D : Quantitative
As the nitrogen concentration can be measured, and its unit of measurement is mg/l. Hence, the variable is quantitative.
(c) THE CORRECT ANSWER IS OPTION D : The Entire Lake
As we are examinig the water quality of that particular lake and we have taken 28 samples from that lake to examine the water quality, our population is the lake.
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