Final answer:
The expected number of individuals from the particular ethnic group in a sample of 190 people is 64.6 when 34% of the population is of that group.
Step-by-step explanation:
To calculate the expected number of individuals from a particular ethnic group in a sample, you multiply the sample size by the percentage of the population that represents the ethnic group.
If about 34% of a population belongs to a particular ethnic group, and you select a sample of 190 people, the expected number of individuals from that ethnic group is:
Expected number = Sample size × Percentage of the ethnic group
Expected number = 190 × 0.34
Expected number = 64.6
Therefore, the expected number of individuals from this particular ethnic group in the sample is 64.6.