Question

Please Answer this question, i need it a lot

Answer 1

Answer:

mean = 9/2 plz mark me as brainliast plz and plz follow me and also thanked my answer if my answer is helpful to u plz mark me as brainliastplz follow me plz follow me plz

Answer 2

Answer:

mean number of sibilings =4.6.

Step-by-step explanation:

Here,∑xi =0+1+2+3+4+5+6+7+8+9

         ∑xi =45.

and, ∑fi =3+6+8+5+4+2+1+0+0+1

       ∑fi =30.

now, ∑fixi =0*3+1*6+2*8+3*5+4*4+5*2+6*1+7*0+8*0+9*1

        ∑fixi =6+16+15+16+10+6+0+0+9

        ∑fixi=138.

Now, mean=∑$\frac{fixi}{fi}$ =138/30 =4.6