Question

please answer this quetions​

Answer 1

Answer:

2)42.5

3)y=14

Step-by-step explanation:

2)class marks =

(upper limit + lower limit)/2

(40+45)/2 =42.5

3)

X+y =11

-3+y=11

y=11+3=>*14*

1) sry i didnt did this because you literally had to only solve any 2 :P

Answer 2

1)mean =sum of constituents /

no. of constituents

therefore

mean =4+3+0+5+2+1+0+1+2÷9

=18÷9

=2