Médiane et quartiles avec des classes

Voici les données d'une série statistique:
Valeurs [ 40 ; 50 [ [ 50 ; 90 [ [ 90 ; 170 [ [ 170 ; 180 [ [ 180 ; 190 [
Effectif 32 43 11 1 71
  1. Dans quelle classe se situe la médiane de cette série: [ ; [
  2. Dans quelle classe se situe Q1:[ ; [
  3. Dans quelle classe se situe Q3:[ ; [


This is exercise number 1 in a series of 3 exercises.
  • 1
  • 2
  • 3
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