If I buy 3 different allotments, each with a daily effective circulation of 25,000, how many total GRPs do I have for the 3 allotments if my total market population is 50,000?

To calculate the Gross Rating Points (GRPs) for your advertisement across the 3 different allotments, we need to follow a couple of steps.

Firstly, GRPs are calculated by multiplying the percentage of the target audience reached by the frequency of the advertisement. In your case, we want to find out the GRP for each allotment and then sum them up. Since all three have a daily effective circulation of 25,000, and the total market population is 50,000, this is a straightforward calculation.

Here is how you would calculate the GRP for one allotment:

1. Determine the reach as a percentage of the total market population. Reach (%) = (Effective circulation / Market population) x 100

2. Since the advertisement's frequency is daily, your frequency is 1 (assuming you're considering the reach for one day for each allotment).

3. Multiply the reach percentage by the frequency to get your GRPs for one allotment. GRPs = Reach (%) x Frequency

4. Sum the GRPs for all three allotments.

We can then calculate the GRP:

Reach (%) per allotment = (25,000 / 50,000) x 100 = 50% Frequency = 1 (daily for each allotment)

GRP per allotment = 50% reach x 1 frequency = 50 GRPs

Since you have 3 allotments, you will then multiply the GRP for one allotment by 3:

Total GRPs = 50 GRPs (per allotment) x 3 (allotments)

Total GRPs = 150

Hence, you have a total of 150 GRPs for the 3 allotments.