Maharashtra Board Solutions for Chapter: Statistics, Exercise 3: Practice set

Author:Maharashtra Board

Maharashtra Board Mathematics Solutions for Exercise - Maharashtra Board Solutions for Chapter: Statistics, Exercise 3: Practice set

Attempt the practice questions on Chapter 7: Statistics, Exercise 3: Practice set with hints and solutions to strengthen your understanding. MHB - Math Part-I solutions are prepared by Experienced Embibe Experts.

Questions from Maharashtra Board Solutions for Chapter: Statistics, Exercise 3: Practice set with Hints & Solutions

MEDIUM
9th Maharashtra Board
IMPORTANT
MHB - Math Part-I>Chapter 7 - Statistics>Practice set>Q -4

Complete the following table.

Classes (age) Tally marks Frequency (Number of students)
12-13 ||||
13-14 |||| |||| ||||
14-15
15-16 ||||
    N=∑f=35

 

MEDIUM
9th Maharashtra Board
IMPORTANT
MHB - Math Part-I>Chapter 7 - Statistics>Practice set>Q -5

In a ‘tree plantation’ project of a certain school there are 45 students of 'Harit Sena'. The record of trees planted by each student is given below:3, 5, 7, 6, 4, 3, 5, 4, 3, 5, 4, 7, 5 , 3, 6, 6, 5, 3, 4, 5, 7, 3, 5, 6, 4, 4, 3,5, 6, 6, 4, 3, 5, 7, 3, 4, 5, 7, 6, 4, 3, 5, 4, 4, 7.

Prepare a frequency distribution table of the data.

MEDIUM
9th Maharashtra Board
IMPORTANT
MHB - Math Part-I>Chapter 7 - Statistics>Practice set>Q -6

The value of π up to 50 decimal places is given below :

3.14159265358979323846264338327950288419716939937510

From this information prepare an ungrouped frequency distribution table of digits appearing after the decimal point.

MEDIUM
9th Maharashtra Board
IMPORTANT
MHB - Math Part-I>Chapter 7 - Statistics>Practice set>Q -7

In the table given below, class-mark and frequencies are given. Construct the frequency tables taking inclusive and exclusive classes.

Class Mark Frequency
5 3
15 9
25 15
35 13

MEDIUM
9th Maharashtra Board
IMPORTANT
MHB - Math Part-I>Chapter 7 - Statistics>Practice set>Q -7

In the table given below, class-mark and frequencies are given. Construct the frequency tables taking inclusive and exclusive classes. 

Class Mark Frequency
22 6
24 7
26 13
28 4

 

MEDIUM
9th Maharashtra Board
IMPORTANT
MHB - Math Part-I>Chapter 7 - Statistics>Practice set>Q -8

In a school, 46 students of 9th standard, were told to measure the lengths of the pencils in their compass-boxes in centimetres. The data collected was as follows.

16, 15, 7, 4.5, 8.5, 5.5, 5, 6.5, 6, 10, 12,13, 4.5, 4.9, 16, 11, 9.2, 7.3, 11.4, 12.7, 13.9, 16,5.5, 9.9, 8.4, 11.4, 13.1, 15, 4.8, 10, 7.5, 8.5, 6.5,7.2, 4.5, 5.7, 16, 5.7, 6.9, 8.9, 9.2, 10.2, 12.3, 13.7,14.5, 10

By taking inclusive classes 0-5, 5-10, 10-15....prepare a grouped frequency distribution table.

MEDIUM
9th Maharashtra Board
IMPORTANT
MHB - Math Part-I>Chapter 7 - Statistics>Practice set>Q -9

In a village, the milk was collected from 50 milkmen at a collection centre in litres as given below :

27, 75, 5, 99, 70, 12, 15, 20, 30, 35, 45, 80,77, 90, 92, 72, 4, 33, 22, 15, 20, 28, 29, 14,16, 20, 72, 81, 85, 10, 16, 9, 25, 23, 26, 46,55, 56, 66, 67, 51, 57, 44, 43, 6, 65, 42, 36,7, 35.

By taking suitable classes, prepare a grouped frequency distribution table.

MEDIUM
9th Maharashtra Board
IMPORTANT
MHB - Math Part-I>Chapter 7 - Statistics>Practice set>Q -10

38 people donated to an organization working for differently-abled persons. The amount in rupees were as follows:

101, 500, 401, 201, 301, 160, 210, 125, 175, 190, 450, 151,101, 351, 251, 451, 151, 260, 360, 410, 150, 125, 161, 195,351, 170, 225, 260, 290, 310, 360, 425, 420, 100, 105, 170,250, 100.

By taking classes 100-149, 150-199, 200-249..., prepare grouped frequency distribution table.