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A student would like to know what proportion of the text messages she sends are to her best friend. She selects a random sample of 50 text messages she sent and determines the proportion of those messages that are sent to her best friend. Which of the following statements is true? The population is all of her friends and the sample is the best friend about whom she is performing this study. The population is the best friend about whom she is performing this study and the sample is all of her friends. The population is the 50 text messages she randomly selected and the sample is all text messages she sent. The population is all text messages she sent and the sample is the 50 text messages she randomly selected.

Answer :

The statement fourth "The population is all text messages she sent and the sample is the 50 text messages she randomly selected" is correct.

What is simple random sampling?

Simple random sampling is a sampling strategy in which every item in the population has an equal probability of being chosen for the sample.

We have:

A student would like to know what proportion of the text messages she sends is to her best friend.

The number of sample methods she selects =  50 text messages

As the sample consists of the 50 texts she randomly chose from the population of all the texts she sent.

Thus, the statement fourth "The population is all text messages she sent and the sample is the 50 text messages she randomly selected" is correct.

Learn more about the simple random sampling here:

brainly.com/question/13219833

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