Hi got a question!
Eight coloured balls were wrapped inside a bag. 3 red balls, 2 yellow balls and 3 Green balls. What is the probability of picking a yellow or a green ball?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Which shows one way to determine the facts of x3+4x2+5x+20 by grouping

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?