Karen took three samples from a population of students to measure their average study time. Compute the variation of each predicted population mean from the sample means in the table. Sample 1: Sample 2: Sample 3:

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!