Question

solve exercise -14.1 1st with clear explanation 10th class maths​

Answer 1

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Answer 2

Answer:

Let us find class marks (xi) for each interval by using the relation.

Ncert Solutions Cbse Class 10 Mathematics Chapter - Statistics

Now we may compute xi and fixi as following

Number of plants Number of houses (fi) xi fixi

0 - 2 1 1 1— 1 = 1

2 - 4 2 3 2 — 3 = 6

4 - 6 1 5 1 — 5 = 5

6 - 8 5 7 5 — 7 = 35

8 - 10 6 9 6 — 9 = 54

10 - 12 2 11 2 —11 = 22

12 - 14 3 13 3 — 13 = 39

Total 20   162

From the table, we may observe that

Ncert Solutions Cbse Class 10 Mathematics Chapter - Statistics  

So, the mean number of plants per house is 8.1.

We have used here direct method as values of class marks (xi) and fi are small.

Step-by-step explanation:

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