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Internal economies of scale relate to the firm itself (and only that firm), there can be an increase in its overall capacity or an increase in all of its factors of productions (FOPs)- this is a long ...

Writing an A Level essay which successfully hits the mark scheme with fluidity and a clear style can sometimes seem to be a daunting task. Where at GCSE level it is adequate to simply demonstrate subj...

X~Binomial (n,p) with n= fixed number of independent trials and p= probability of a trail succeeding.

X ~Binomial can be approximated to Y~ Normal  if:

1)      The number of trials, n,...

Step 1: Add a cumulative frequency column to the table

Step2: Use the formula n/2 (where n is the final total in the cumulative freq...