Prevalence in epidemiology is the proportion of disease found to have been affecting a particular population (typically a disease or a risk factor such as smoking or seat-belt use).
Exclusive analysis by The Daily Telegraph reveals the price of an average basket of groceries at any Coles and Woolworths supermarket in Sydney has jumped a staggering 16 per cent since 2009. That adds as much as $26 a week to the average bill.he analysis found that if a shopper today purchased the identical basket of groceries used in Choice's 2009 Supermarket Survey, they would pay more than $158 for what two years ago cost $136. CommSec economist Craig James said the average household currently spends $185 a week on food.
I took a random poll at my school according to my data 40$ on average is the amount spent per week on food. Mainly at places such as Cosi, subway, pizza Roma, Pamera, seven eleven, noodles and company, food court food,and Starbucks where cost can range anywhere from 4$ to 10$ per person.