Statıstıcs I Deneme Sınavı Sorusu #1254144
A researcher collects data about the weight of pupils in a school. There are 500 students in that school whose weight differs from 20kgs to 40kgs. What is the class width for this case?
|
0.04 kg |
|
0.5kg |
|
0.89 kg |
|
1 kg |
|
2 kg |
Yanıt Açıklaması:
Class Width=Range/Number of classes
where Number of Classes=?n, where n=number of observations
Thus Number of Classes=?500=22.36
But when the number of classes is larger than 20 we take it as 20. So in this case:
Class Width=(40-20)/20=20/20=1kg
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