HI ! I HAVE 2 ANSWERS OUT OF THE 4. I AM JUST UNSURE HOW TO FIND THE POPULATION MAN AND SAMPLE MEAN. PLEASE ADVISE. THANK YOU !

In this practice assignment, we would like to us TI 84 to calculate the mean and standard deviation of a data set:

Data 1:{1, 2, 6, 8, 8, 12, 15}

Please state the

• population mean
• population standard deviation: 4.655477353
• sample mean
• sample standard deviation: 5.028490259