The proportion of people who are left handed is 0.12 . We are going to take a sample of 285 people. What is the mean proportion of the sample who should be left handed? Answer to 2 decimal places. square

To find the mean proportion of left-handed people in the sample, we can use the expected value of the sample proportion. The expected value of the sample proportion is equal to the population proportion.<br /><br />Given that the proportion of people who are left-handed is 0.12, the mean proportion of left-handed people in the sample should also be 0.12.<br /><br />Therefore, the mean proportion of the sample who should be left-handed is 0.12.