There are 10 black balls and 7 red balls in an urn. If 4 balls are drawn without replacement, what is the probability that more than 1 black ball is drawn? Express your answer as a fraction or a decimal number rounded to four decimal places.

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.