Suppose there are 100100 cards numbered 11 through 100100. Draw a card at random. Let XX be the number of digits on the card (between 11 and 33) and let YY be the number of zeros. Find \mathrm{Cov}(X, Y)Cov(X, Y).

Pranza plotted point a in the coordinate plane below.

Cor d? ? me ? max 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.

Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)