GU Asuvey was oonducted to sudy the relationship between the anual income ofatam

Question

GU Asuvey was oonducted to sudy the relationship between the anual income ofatamly and the anoufnef money the tamiy spends onerenanment. Data were colected tom a wdom sample of 280 families from a certain meropoitan area A meaningful graphical display of these data would be side by side bepiors O a stemple Question 3 ofs Paintx 10 n order to study whether their score on an IQ test there is a relationship betsween iQ level and birth order, data were collected from a sample of students on thei birth onder (Oidestin Betwee/Woungest and The data collected in this stuey would best be displayed ssing

Explanation / Answer

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1. The first questions mentions 2 variables, total income and entertainment expenditure of 250 families, since this includes analyzing 2 variables we have to conduct bivariate analysis i.e. scatter plots. Option D is correct.

2. Birth order is categorical variable and we want to see performance of students on IQ test by this categorical variable - birth order. This means pie chart or histogram/stem plot will not do. A 2 way table will still give us frequency by birth order which we don't require. We require a summarisation of statistics by birth order. Box plot provides this at the categorical variable . So, side by side boxplot should work.

A is correct.

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