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Author Question: Suppose that a Normal model describes the acidity (pH) of rainwater, and that water tested after ... (Read 179 times)

Brittanyd9008

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on: Jul 25, 2018
Suppose that a Normal model describes the acidity (pH) of rainwater, and that water tested after last week's storm had a z-score of 1.8. This means that the acidity of that rain
 
  A) had pH 1.8 times that of average rainwater.
  B) had pH 1.8 standard deviations higher than average rainwater.
  C) had pH of 1.8.
  D) varied with a st. dev. of 1.8.
  E) had pH 1.8 higher than avg, rainfall.

Question 2

We might choose to display data with a stemplot rather than a boxplot because a stemplot
 
  I. reveals the shape of the distribution.
  II. is better for large data sets.
   III. displays the actual data.
  A) II only B) I, II, and III C) I and III D) I only E) III only
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
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Bigfoot1984

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Reply #1 on: Jul 25, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Brittanyd9008

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Reply 2 on: Jul 25, 2018
Wow, this really help

ktidd

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Reply 3 on: Yesterday
Excellent

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