You flip a fair coin 100 times. define random variable y = proportion of heads. a) what is the expected proportion of heads for this experiment? b) what is the standard deviation for this experiment? c) what is the probability that the proportion of heads is between 0.45 and 0.60? d) what is the probability that the proportion of heads is greater than 0.60?

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2