Question

The weights of new born babies (in kg.) in a hospital on a particular day are as follows: 

2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4 

(i) Rearrange the highest weight. 

(ii) Determine the highest weight. 

(iii) Determine the lowest weight. 

(iv) Determine the range. 

(v) How many babies were born on that day? 

(vi) How many babies weigh below 2.5 kg? 

(vii) How many babies weigh more than 2.8 kg? 

(viii) How many babies weigh 2.8 kg?

Answer 1

(i) Arrange weights in descending order: 

3.1, 3.0, 2.9, 2.9, 2.8, 2.8, 2.7, 2.7, 2.6, 2.5, 2.5, 2.4, 2.3, 2.2, 2.1. 

(ii) Highest weight = 3.1 Kg 

(iii) Lowest weight = 2.1 Kg 

(iv) Range = 3.1 kg – 2.1 kg = 1.0 Kg 

(v) 15 babies were born on that particular day. 

(vi) 4 babies weight below 2.5 Kg. 

(vii) Babies more than 2.8 Kg weight are 4. 

(viii) Babies weigh 2.8 Kg are 2.