Advertising and Public Relations · TEE · practice

GRP and impressions example 1

Optional numerical practice

Extra drills; no claim that these exact questions or allocated marks appeared in TEE

Optional practice question. A campaign reaches 60% of a target population of 10,000 with an average frequency of 4. Find GRP, unique people reached and gross impressions. All figures refer to the same period. [3 practice marks]

Answer

Authored illustration: these numbers were chosen to explain a faculty-note concept. No matching supplied-data question was found in the 14 recovered APR papers. Standalone calculation drills are optional practice; their marks are author-set.

Given

ReachAverage frequencyTarget
60%410000

To find

GRP, reached people and impressions.

Formula and why

\text{GRP}=R_{\%}\bar fLaTeX: \text{GRP}=R_{\%}\bar f
n=\frac{R_{\%}}{100}N,\qquad I=n\bar fLaTeX: n=\frac{R_{\%}}{100}N,\qquad I=n\bar f

Use the percentage number in GRP. Divide it by 100 when finding a fraction of the population.

Step-by-step solution

Step 1. Calculate GRP

60\times4=240\text{ GRPs}LaTeX: 60\times4=240\text{ GRPs}

Step 2. Convert reach to a fraction

60\div100=0.6LaTeX: 60\div100=0.6

Step 3. Calculate unique people reached

0.6\times10000=6000LaTeX: 0.6\times10000=6000

Step 4. Calculate gross impressions

6000\times4=24000LaTeX: 6000\times4=24000

Final answer: 240 GRPs; 6,000 people; 24,000 gross impressions.