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Estatística aplicada mediana frequencia
Os tempos de entrega de 120 pedidos realizados por uma pizzaria têm distribuição acumulada dada pela tabela seguinte:?
Tempo(min.)
Frequência Acumulada
10,0 ÷¾ 20,0
20
20,0 ÷¾ 30,0
65
30,0 ÷¾ 40,0
95
40,0 ÷¾ 50,0
120
O percentual aproximado dessas entregas que foram realizadas em menos de 40 minutos é:
A) ?87%?
B) ?79%?
C) ?83%?
D) ?95%?
E) ?91%?
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