Question

we may not get the same value for median and
Thus we realise that mean, mode and manage the numbers that
values of a group of observations ordata. They liebeween the minime
values of the data. They are also called the measures of the central tende
EXAMPLE 7 Find the median of the data: 24.1.46.17. 18. 23.35
We arrange the data in ascending onderweg 17, 18.34
Median is the middle observation. There are 25 is themes
1. The scores in mathematics test(out of 5) of 15 students is as follow
19. 25. 23. 20. 9. 20, 15. 10, S. 16, 25, 20, 24. 12. 20
MATHEMATICS
Note that in general,
68
SOLUTION
EXERCISE 3.2
Find the mode and median of this data. Are they same?
2. The runs scored in a cricket match by 11 players is as follows:
6. 15. 120, 50, 100, 80, 10, 15, 8, 10, 15
Find the mean, mode and median of this data. Are the three same
3. The weights (in kg.) of 15 students of a class are:
38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43,38,47
0 Find the mode and median of this data
m) Is there more than one mode?
4. Find the mode and median of the data: 13, 16, 12, 14, 19.12.14
5. Tell whether the statement is true or false:
The mode is always one of the numbers in a data
(0) The mean is one of the numbers in a data.
(i) The median is always one of the numbers in a data.
(iv) The data 6, 4.3.8.9. 12. 13,9 has mean 9.
3.8 Use or BAR GRAPHS WITH A DIFFERENT
We have seen last year how information collected could be first arrang
distribution table and then this information could be put as a visual rep
form of pictographs or bar graphs. You can look at the bar graphs and
hout the​

Answer 1

$\huge\fbox\red{A}\fbox\pink{n}\fbox\purple{S}\fbox\green{w}\fbox\blue{E}\fbox\orange{r}$

• ABC is parallel to DBC
• angle DBC is perpendicular to BCD
• Angle B, angle D and angle C are equal in length

Hence proved