Exercise 10.2.1: The probability of an event - coin flips. About A fair coin is flipped n times. Give an expression for each of the probabilities below as a function of n. Simplify your final expression as much as possible. (a) At least n - 1 flips come up heads. (b) There are at least two consecutive flips that are the same. (c) The number of heads is different from the number of tails. (Assume that n is even, otherwise the probability is one.)

What two consecutive odd integers have a sum of -28

Urgent? will give brainliest to the first correct answer what is the area of the figure?

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec