Question

a) What would be an advantage of grouping this data? (1 mark)

A veterinarian recorded the masses ( in grams) of kittens at birth (rounded to the nearest whole number) . The results are sorted (ascending order, left to right) in the list here. 175, 225,228,235,241,252,258,261,263,266,277,281,295,299,301,312,334

. b) What is the range for this data? *

Answer #1

**A veterinarian recorded the masses in grams of kittens
at birth, rounded to the nearest whole number.**

**The results listed are**

**175, 225, 228, 235, 241, 252, 258, 261, 263, 266, 277,
281, 295, 299, 301, 312, and 334.**

**In this problem, we note that**

**There are 17 different values;**

**So, the sample size is considerably large.**

**Also, the values range from 175, to 334, which is quite
a large range.**

**So, it would be better not use all the values
individually; that is why we had better group this
data.**

**Question (b)**

**The range for a data set is actually defined as the
difference between the maximum value of the data set, and the
minimum value of the data set.**

**So, the range for this data set is given by**

**=334-175**

**=159**

**So, the range is 159.**

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