I am a Ph.D. student at Virginia Tech in materials science and engineering researching 3D printing of metals. I graduated with a B.S. in materials science and engineering in May 2022 and have lots of experience in tutoring STEM topics to students from middle school to college level. I've been tutoring since I was in high school and genuinely enjoy doing it. (read more)
...I am a native speaker and currently tutoring Turkish. I follow a textbook and its workbook that is followed by one of the best Turkish courses in Turkey. In every lesson, I start with speaking, then do grammar, exercises, and reading. (read more)
...The sample also has a "spread" or range about the average: a standard deviation. Normally, about two-thirds of the group will lie within one standard deviation of the average, and about 95% lives within two standard deviations. Is the sample size big enough? (read more)