A construction company submitted bids for three contracts. The company estimates that it has a 20% chance of winning any given bid. Let X represent the number of bids the company wins. Here is the probability distribution of X along with summary statistics:

X = # of bids won-

0 1 2 3

P(X)-

0.512 0.384 0.096 0.008

Mean: µx=0.6

Standard deviation: σx=0.69

It costs the company a total of $2,000 to submit these bids, and they stand to gain $10,000 for each bid

they win. Let V represent their net gain from submitting these three bids.

What are the mean and standard deviation of V?

µv= dollars

σv=dollars

Given: ∆mop p∆mop =12+4 3 m∠p = 90°, m∠m = 60° find: mp, mo

If the value of cos330°is√3/2 then find cos 165°.

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i. e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?