SSC (English Medium) Class 8Maharashtra State Board
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# The Following Table Shows the Number of Saplings Planted by 30 Students. - SSC (English Medium) Class 8 - Mathematics

ConceptConcept of Arithmetic Mean

#### Question

The following table shows the number of saplings planted by 30 students. Fill in the boxes and find the average number of saplings planted by each student.

 No. of saplings(Scores) xi No. of students(frequncy) fi fi x xi 1 4 4 2 6 _______ 3 12 _______ 4 8 _______ N = _________ ∑fixi =  ______

Mean bar "x" = square/"N"

= square/square
= square
∴ The average number of trees planted square

#### Solution

 No. of saplings(Scores) xi No. of students(frequncy) fi fi×xi 1 4 4 2 6 = 2 x 6 = 12 3 12 = 3 x 12 = 36 4 8 = 4 x 8 = 32 N = 30 ∑fixi= 84

Mean bar "x" = (sum f_ix_x)/ "N"

= 84/30

= 2.8

∴ The average number of trees planted 2.8
Is there an error in this question or solution?

#### APPEARS IN

Balbharati Solution for Balbharati Class 8 Mathematics (2019 to Current)
Chapter 11: Statistics
Practice Set 11.1 | Q: 1 | Page no. 69
Solution The Following Table Shows the Number of Saplings Planted by 30 Students. Concept: Concept of Arithmetic Mean.
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