If a sample of 187 bowlers were taken from a population of 999 bowlers could refer to the mean of how many bowlers' scores?

The sample of 187 bowlers can be used to estimate the mean score of the entire population of 999 bowlers. If the sample is representative, the mean score calculated from the 187 bowlers can provide a good approximation of the mean score for all 999 bowlers. However, to find the true population mean, you would ideally want to calculate it using scores from all 999 bowlers.