Question

If values of x are 1,3,5,7,9 and their respeçtive frequençies are 5,8,9,2,1 compūte ∑fx

› 86

› 97

› 95

For abôve Questiön what is the valūe of arïthmetic meān

› 4.88

› 3.88

› 6.88


Sölve with requīred solution.

PIs It's really Urgēnt!
I've the answers but I need the Solution.. Pls Help me gūყs!
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Answer 1

Answer:

for first part Summation fx simply multiply value of x with corresponding frequency and add. 1x5+3x8+5×9+7×2+9×1

5+24+45+14+9=97

for second part, divide the answer of first part by sum of frequencies, that is by 5+8+9+2+1

97/25=3.88

Answer 2

Answer:

Refer to the picture attached..