Home
Class 9
MATHS
Thirty children were asked about the num...

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 ,6, 2, 3, 5, 12, 5, 8, 4, 8,
10, 3, 4, 12, 2, 8, 15, 1, 17, 6
3, 2, 8, 5, 9, 6, 8, 7, 14, 12
How many children watched television for 15 or more hours a week?

Text Solution

Verified by Experts

The correct Answer is:
2
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    MTG IIT JEE FOUNDATION|Exercise NCERT SECTION (Exercise 14.3)|12 Videos
  • STATISTICS

    MTG IIT JEE FOUNDATION|Exercise NCERT SECTION (Exercise 14.4)|7 Videos
  • STATISTICS

    MTG IIT JEE FOUNDATION|Exercise NCERT SECTION (Exercise 14.1)|2 Videos
  • QUADRILATERALS

    MTG IIT JEE FOUNDATION|Exercise Olympiad/HOTS CORNER|15 Videos
  • TRIANGLES

    MTG IIT JEE FOUNDATION|Exercise OLYMPAID/ HOTS CORNER|10 Videos

Similar Questions

Explore conceptually related problems

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 6 2 3 5 12 5 8 4 8 10 3 4 12 2 8 15 1 17 6 3 2 8 5 9 6 8 7 14 12 (i) Make a grouped frequency distribution table for this data, taking class width 5 and one of the class intervals as 5 - 10. (ii) How many children watched television for 15 or more hours a week?

The range of the data– 9, 8, 4, 3, 2, 1, 6, 4, 8, 10, 12, 15, 4, 3 is

30 children were asked about the number of hours they watched TV programmes last week. The result are recorded as under Can we say that the number of children who watched TV for 10 or more hour in a week 22? Justify your answer.

How many 8's followed by an even number and preceded by an odd number? 7, 8, 5, 6, 7, 8, 4, 3, 2, 1, 3, 8, 6, 4, 3, 7, 8, 4, 2, 1, 3, 8, 2, 8, 9

Find the range of { 2 , 7 , 6 , 4 , 3 , 8 , 5 , 12}.

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency dist

What should come next in the following series? 9 8 7 6 5 4 3 2 1 9 8 7 6 5 4 3 2 9 8 7 6 5 4 3 9 8 7 6 5 4 9 8 7 ?

How many 4's are there preceded by 7 but not followed by 3? 5 9 3 2 1 7 4 2 6 9 7 4 6 1 3 2 8 7 4 1 3 8 3 2 5 6 7 4 3 9 5 8 2 0 1 8 7 4 6 3

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 What is the empirical probability that an engineer lives: within 1/2 km from her place of work?