Question

how do you do this please can you guys help me

Answer 1

Answer:

Mean of the observation is 2.56.

Step-by-step explanation:

You can complete the fx column by multiplying the respective f and respective x and I have provided the full table below.

Summing up all the 'fx' values you get 256.

Now mean(x) is defined as sum of all fx divided sum of all f(given that it is 100).

i.e x = 256/100

 ∴ x = 2.56.

Answer 2

Now mean(x) is defined as sum of all fx divided sum of all f(given that it is 100).

i.e x = 256/100

∴ x = 2.56.