Differentiate between class limits and true class limits.Give examples

Lets go through the following example to understand about class limits and true class limits.

The class marks of a distribution are 47, 52, 57, 62, 67, 72.

Since the class marks are uniformly spread.

Therefore the class size is the difference between any two consecutive class marks.

class size=52-47=5

the lower limit of the first class=

the upper limit of the first class=

Therefore the first class interval=49.5-44.5=5

Similarly we can find the class limits of all the class marks given.

class marks | class limits |

47 | 44.5-49.5 |

52 | 49.5-54.5 |

57 | 54.5-59.5 |

62 | 59.5-64.5 |

67 | 64.5-69.5 |

72 | 69.5-74.5 |

77 | 74.5-79.5 |

So the true class limits are same as the class limits

Hope this clears your query. If still you face any difficulty, do get back to us.

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