Question

Which example would be likely to give a valid conclusion?a. Five people are randomly sampled and asked about their eye color.b. Sarah asks the girls on her soccer team what their favorite sport is.c. In a data set of 20 data points, the mean and median are different and there is no mode.d. Ten students from each class are randomly sampled to find the favorite subject at school.

Answer 1

Answer:

Option (d)

Step-by-step explanation:

Let's work by the process of elimination.

Option (a):

The population as well as the aim of study is not defined. Hence, it is incorrect.

Option (b):

As the girls belong to soccer team, the views towards their favourite sport would likely be biased and they will probably chose soccer as their favourite sport. This is incorrect.

Option (c):

The nature of data is not described. Also we don't know whether the sample drawn was random or biased. Hence, this option is also incorrect.

Option (d):

In this scenario, the sample is drawn randomly. The aim of the study is also clearly defined. Hence, this option is correct.