Question

Following are the marks in maths out of 80, in two sections of class XI.
Class/Marks
10-20 20-30 30-40 40-50 50-60 60-70 70-80
No. of students in XIA 9
17 32 23
40
18 1
No. of students in XI B 18
22 40
18
32
8
2
(i) The mean marks of Section A is
(a) 44 (b) 45 (c) 41 (d) 46
The mean marks of Section B is
(a) 37 (b) 39 (c) 41 (d) 44
(iii) The Section with better performance
(a) Section A (b) Section B
(c) both section are same (d) Can't say.
(iv) No. of students in Section A who are scoring more than or equal to 50%
(a) 23 (b) 40 (c) 92 (d) 73
(v) No. of students in Section B who are scoring less than 25%
(a) 18 (b) 22 (c) 40 (d) 29​

Answer 1

Answer:

Ek ek karka Question puch

Step-by-step explanation:

Pls mark me brainliest

Answer 2

Answer:

cbnjdbvfggbdhgbfvsdfk

Step-by-step explanation:

mark the other person as brainliest