. For a customer, the number of books he buys in a bookstore can be treated as a random variable. The probability of not buying any book, buying one book and buying 2 books are 0.05,0.8 and 0.15 for each customer. Suggest there are 400 customers who come to this bookstore today and the number of books purchased by each customer are a sequence of iid random variables. (a) Find the probability that the bookstore could sell more than 450 books (the sum of all customers buying) today

Design a number line containing five (5) points2.benin, one of the smallest countries in africa, has a total area of 43,475 square miles. the population of the country was recently estimated at 10,160,555. about 3,657,790 people live in rural areas. the country has only about 870 miles of surfaced roads. a. round off the total population to the nearest hundred thousand people. b. round off benin’s area in square miles to the nearest thousand. c. round off the number of miles of surfaced roads to the nearest ten. d. round off the number of people who live in rural areas to the nearest million.

Ofin . (2,4) (2,1) a. y= 2 b. x= 2 c. x= -2 d. y= 2x

What 620000 divided by 10 to the third power