A coin returns heads with probability 1 3 . You keep flipping the coin until the most recent flips is heads and the two immediately preceding flips were tails (that is you stop flipping the coin until the pattern T, T,H appears). Let Y denote the number of flips made. Compute E[Y ].

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Which will form a composite function?