A machine runs a thousand tests a day and a company wants to analyze the number of successes and failures, so for one day the company records the results of two tests in a row as a sample. They repeat this ten times. Here are the ten samples of size 2:

{success, success}

{failure, failure}

{success, failure}

{success, failure}

{success, failure}

{success, success}

{success, failure}

{success, failure}

{success, success}

{success, failure}

The company analyzes the number of successes.

The mean of the sampling distribution of the proportion is .

The standard distribution of the sampling distribution is .