Question

The following are the weight in kg of 20 pupils in a class
30,37,45,32,26,40,26,31,30,35,28,32,35,41,28,27,42,36,32,36
using tally marks form an ungrouped frequency table thereby showing the frequency and cumulative frequency columns.

Also find the three measures of central tendency of the data​

Answer 1

Mode & Median = 32 , Mean = 33.45

Step-by-step explanation:

Weight    Frequency              cf

26           ||    = 2                      2

27           |       = 1                     3

28          ||       = 2                    5

29         0                                 5

30          ||       = 2                    7

31          |         = 1                     8

32          |II       =3                    11

33         0                                 11

34          0                                11

35          ||       =2                     13

36          ||       = 2                    15

37          |       = 1                      16

38         0                                16

39         0                                16

40         |       = 1                       17

41          |       = 1                       18

42          |       = 1                       19

43          0                                19

44          0                                19

45          |       = 1                      20

Mode = 32

Median  =  (10th + 11th Value )/2 = (32 + 32)/2 = 32

Mean  =   669/20  = 33.45

Learn more:

Centuries scored and number of cricketers in the world are given ...

https://brainly.in/question/4735255

make a summary interview 50 people in and around your locality ...

https://brainly.in/question/10209414

the mean, median and the mode for the following data series: 18, 20 ...

https://brainly.in/question/9098099