Acancer research group was interested in determining the percentage of women 40 years or older that have regularly scheduled mammograms. to accomplish this, they surveyed 500 women in this age group and based on 155 women that responded affirmatively, estimate the percentage of all women in this age group that have regularly scheduled mammograms. this process is an example of

inferential statistics

Explanation:

Inferential statistics analyzes a small group from a population and the results of this analysis is used the base to infer qualities of the entire population.

Here, only a group of 500 women are selected from the entire population of the country and from the 500 women selected only 155 responded. From this analysis the percentage of all the women in the age group that have regularly scheduled mammograms is inferred.

the correct labels are as follows:

a: yellow river

b: himalayan mountains

c: north china plain

d: taklimakan desert