Question

solve this question mate plzzz ​

Answer 1

Answer:

-1

Step-by-step explanation:

Solve this by Mid point formula.

If P is midpoint of AB, then

x,y=[(x1+x2)/2] , [(y1+y2)/2]

(-1,1)=(-3+1)/2 , [a+(a+4)]/2

So, taking y-coordinate,

1=(a+a+4)/2

1=(2a+4)/2

2a+4=2

2a=-2

a=-1

Hope this helps !!

Thanks !!

Answer 2

Answer:

find the value of lambda if mode of the data is 20: 15, 20, 25, 18,13, 15, 25,15, 18, 17,20,25,20 lambda 18 by subtracting.