Question

1. In an examination, 25 students secured the following marks.
23 28 30 32 35 35 36 40 41
48 49 52 53 54 56 56 58 61
45
145
43
62 |
65
68
ss as
(1) Arrange these data in the form of a frequency distribution using the
intervals:
20-29, 30–39, 40–49, 50-59, and 60-69.
(ii), Arrange the data with cumulative frequencies.​

Answer 1

Answer:

Step-by-step explanation:

Given  

1. In an examination, 25 students secured the following marks.23 28 30 32 35 35 36 40 4148 49 52 53 54 56 56 58 61 45145  

Class interval                      frequency         cumulative frequency

20 – 29                                      2                                2

30 – 39                                      4                                6

40 – 49                                      8                                14

50 – 59                                      6                                20

60 – 69                                      5                                25

So we get frequency and cumulative frequency.

Answer 2

Step-by-step explanation:

hey buddy here is your answer