Statıstıcs I Deneme Sınavı Sorusu #1279447

Data format : (class, class interval, frequency, cumulative frequency) ; data : (1, 100 up to 200, 5, 5), (2, 200 up to 300, 10, 14), (3, 300 up to 400, 16, 30), (4, 400 up to 500, 20, 50), (5, 500 up to 600, 10, 60) ; what is the 40th percentile of these data ?


355

357.5

360

362.5

365


Yanıt Açıklaması:

k = 60 x 40 / 100 = 24 ; k is in the 3rd class ; P(k) = 300 + (100 / 16) (24 – 14) = 300 + 62.5 = 362.5 . pg. 117. Correct answer is D.

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