histogram and frecuencies polygon

  HISTOGRAM AND FREQUENCY POLYGON: It is recommended with continuous quantitative variables and with grouped data.

  Example: Mario collected data about the height of his partners at school:

Interval
 tally  frecuency
 [155,160)  IIII  4
 [160,165)  IIIII IIIII IIIII IIIII I
  21
 [165,170)  IIIII IIIII III
  13
 [170,175)  II  2

 

 

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