14

Statistics

10th Class - CBSE - Mathematics - 1675 Questions - 0 Concepts

Important Questions

Q1 Single Correct Hard
The mean proportion between 5:45 is _____.
  • A. 25
  • B. 5
  • C. 115
  • D. 15

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1 Verified Answer | Published on 07th 09, 2020

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Q2 Single Correct Hard
In a moderately a symmetrical distribution. The mode and median are $$75$$ and $$60$$ respectively, find mean.
  • A. $$45.50$$
  • B. $$45.83$$
  • C. $$52.86$$
  • D. $$52.5$$

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Q3 One Word Hard
The table shows the classification of $$100$$ families in a locality according to the amount paid against their electricity bill.
Electricity bill (in Rupees)Number of families
$$0 - 200$$$$8$$
$$200 - 400$$$$12$$
$$400 - 600$$$$21$$
$$600 - 800$$$$30$$
$$800 - 1000$$$$23$$
$$1000 - 1200$$$$6$$
Find the median of the amount paid.

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Q4 Subjective Hard
The table below classifies $$60$$ students in a class according to their heights.
Height (cm)Number of students
140-1455
145-1508
150-15512
155-16016
160-16511
165-1705
170-1753
Find the median of the amount paid.

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Q5 One Word Hard
The table below shows the classification of the members of a committee according to their age.
AgeNumber of members
25-304
30-357
35-4012
40-4515
45-5016
50-5512
55-609
60-655
Calculate the median age of the members.

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Q6 Single Correct Hard
What is the value of mode for the following data:
Class intervalFrequency
$$350 - 369$$$$15$$
$$370 - 389$$$$27$$
$$390 - 409$$$$31$$
$$410 - 429$$$$19$$
$$430 - 449$$$$13$$
$$450 - 469$$$$6$$
  • A. $$390$$
  • B. $$394$$
  • C. $$400$$
  • D. $$394.50$$

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Q7 Subjective Hard
Find the mean of the following frequency distribution:
Marks obtainedNumber of students
10-20$$6$$
20-30$$8$$
30-40$$13$$
40-50$$7$$
50-60$$3$$
60-70$$2$$
70-80$$1$$

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Q8 Subjective Hard
A shoe shop in Chennai sold hundred pairs of shoes of a particular brand in a certain day with the following distribution.
Size of shoe$$4$$$$5$$$$6$$$$7$$$$8$$$$9$$$$10$$
No. of pairs sold$$2$$$$5$$$$3$$$$23$$$$39$$$$27$$$$1$$
Find the mode of the following distribution.

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Q9 Subjective Hard
The median of 230 observations is 46. Find $$a$$ and $$b$$.
Class10-2020-3030-4040-5050-6060-70
Frequency1230$$a$$65$$b$$25

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Q10 Subjective Hard
For the following data obtain the mode.
Weight (in kg)$$21-25$$$$26-30$$$$31-35$$$$36-40$$$$41-45$$$$46-50$$$$51-55$$$$56-60$$
No. of students$$5$$$$4$$$$3$$$$18$$$$20$$$$14$$$$8$$$$3$$

Asked in: Mathematics - Statistics


1 Verified Answer | Published on 07th 09, 2020

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Questions 122475
Subjects 10
Chapters 93
Enrolled Students 65
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