Question

1.
The mean of the following data is 7.3. Find the missing frequency 'k.
X 5 6 7 8 9
f 4 6 12 k 8​

Answer 1

Answer:

x+5+6+7+8+9+f+4+6+12+k+8/12=7.3

65+x+k+f/12=7.3

65+k+x+f=87.6

f=22.6-x-k

Answer 2

Answer:

as (x+5+6+7+8+9)/2=7•3

x+5+6+7+8+9=7•3×2

x+35=14•6

x=-20•4

Step-by-step explanation:

i think here f should be x,

then it is possible to get ur ans.

then (-20•4+4+6+12+8+k)/2=14•6

9•6+k=14•6

k=14•6-9•6

k=5

that's the ans.