Plsbarbara draws pens randomly from a box containing 5 pens of the same shape and size. there is 1 green pen, 3 red pens, and 1 blue pen. she draws 1 red pen and then another red pen without replacing the first one. find the probability of drawing 1 red pen followed by another red pen, and show the equation used.

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Need now 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.

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible