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# 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

1 Verified Answer | Published on 07th 09, 2020

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. $52.5$

1 Verified Answer | Published on 07th 09, 2020

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.

1 Verified Answer | Published on 07th 09, 2020

Q4 Subjective Hard
The table below classifies $60$ students in a class according to their heights.
 Height (cm) Number of students 140-145 5 145-150 8 150-155 12 155-160 16 160-165 11 165-170 5 170-175 3
Find the median of the amount paid.

1 Verified Answer | Published on 07th 09, 2020

Q5 One Word Hard
The table below shows the classification of the members of a committee according to their age.
 Age Number of members 25-30 4 30-35 7 35-40 12 40-45 15 45-50 16 50-55 12 55-60 9 60-65 5
Calculate the median age of the members.

1 Verified Answer | Published on 07th 09, 2020

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

1 Verified Answer | Published on 07th 09, 2020

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

1 Verified Answer | Published on 07th 09, 2020

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.

1 Verified Answer | Published on 07th 09, 2020

Q9 Subjective Hard
The median of 230 observations is 46. Find $a$ and $b$.
 Class 10-20 20-30 30-40 40-50 50-60 60-70 Frequency 12 30 $a$ 65 $b$ 25

1 Verified Answer | Published on 07th 09, 2020

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 $5$ $4$ $3$ $18$ $20$ $14$ $8$ $3$