I need help with these. Pls help:(

You might say that this experiment was an attempt to build a scale, and then calibrate it against a scale that we trust (the electronic scale). So as not to give away the answer to the preceding question, let's assume that we're talking about a different scale with the same design. Several trials are conducted, and the average and 95% confidence interval are calculated. The mass determined using this other balance scale does NOT agree with the mass measured on a digital scale. Is it possible that the balance scale and the electric scale are accurate, and the lack of agreement was just random? Yes O No Question 8 5 pts Extension Question In Part 1 of the lab activity, you did not assume that the center of mass was at the 50 cm mark. Instead, you determined the location of the center of mass of the meter stick to eliminate this source of error. Let's say that the actual center of mass is at the 49 cm mark. If you did not measure this and assumed it was at 50 cm, what kind of error would have been introduced? Random error Systematic error Both random and systematic error No error would have been introduced