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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 - CBSE Class 9 - Mathematics

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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 weights in descending order.
(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?

Solution

The weights of new born babies (in kg) area as follows
2.3,2.2,2.1,2.7,2.6,2.5,3.0,2.8,2.9,3.1,2.5,2.8,2.7,2.9,2.4.

(i) The 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) The highest weight =3.1kg

(iii) The lowest weight = 2.1kg

(iv) Range = 3.1-2.1=1.0kg

(v) 15 babies were born on that particular day

(vi) 4 babies weight below 2.5kg 

(vii) Weight more than 2.8kg are 4-babies.

(viii) Weight 2.8kg →2 babies

  Is there an error in this question or solution?

APPEARS IN

 RD Sharma Solution for Mathematics for Class 9 by R D Sharma (2018-19 Session) (2018 to Current)
Chapter 22: Tabular Representation of Statistical Data
Ex.22.10 | Q: 10 | Page no. 16
Solution 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 Concept: Collection of Data.
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