There is a 4% chance that a band’s lead singer’s voice isn’t working (typically due to illness) on any given day. This band has played 19 gigs so far this year, and at each of these the lead singer’s voice has been fine. What is the probability that the lead singer’s voice will be fine at the band’s next gig, which is 2 weeks from now?Assume she never is sick for more than 7 consecutive days, and the interval between bouts of illness is inherently unpredictable

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?