Priya is playing a game where she earns online badges for scoring higher than the mean score on a level. after the tenth level, she scores 3,540 points, which is 2 standard deviations above the mean score of 3,110 points.
what is the standard deviation of scores for the tenth level?
215
311
354
430

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Choose the more precise measurement. 26.4 cm or 8.39 cm

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?