Question

2 Number of house holds 4 12 Find the mean daily expenditure on food by a suitable method To find out the concentration of So, in the air (in parts per million, iepp), the dam was collected for 30 localities in a certain city and is presented below Concentration of So, in ppm 0.00-0.04 0.04-008004-0.12 0.120.16 0.160.20 0.200.26 4 2 Frequency Find the mean concentration of So, in the air.​

Answer 1

Answer:

Answer:-

Concentration of SO

2

(in ppm) x

i

Frequency

(f

i

) f

i

x

i

0.00-0.04 0.02 4 0.08

0.04-0.08 0.06 9 0.54

0.08-0.12 0.10 9 0.90

0.12-0.16 0.14 2 0.28

0.16-0.20 0.18 4 0.72

0.20-0.24 0.22 2 0.44

Σf

i

=30 Σf

i

x

i

=2.96

mean concentration of SO

2

in the air=

Σf

i

Σf

i

x

i

=

30

2.96

=0.0986≈0.099

Step-by-step explanation:

thanks my answer

Answer 2

Number of house holds 4 12 Find the mean daily expenditure on food by a suitable method To find out the concentration of So, in the air (in parts per million, iepp), the dam was collected for 30 localities in a certain city and is presented below Concentration of So, in ppm 0.00-0.04 0.04-008004-0.12 0.120.16 0.160.20 0.200.26 4 2 Frequency Find the mean concentration of So, in the air.

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