A data set has mean of 14 and standard deviation of 2. The distribution is a bell shaped. Approximately 95% of the observations lie between and .

Find the value of the cosine for angle a

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)