According to the national health survey, 9.8 % of the population of 18-24 year olds in the us are left-handed. supposed you select 10 individuals form this popoulation and x is the number of persons who are left handed. how many left-handed people are expected to be selected? what is the variance and standard deviation of x? what is the probability that exactly 4 people are left-handed? what is the probability that at least 4 people are left-handed? what is the probability that at most two people are left-handed? given that at least 4 people are left-handed, what is the probability that exactly 4 are left-handed?

What is the domain and range of each function 1. x (3, 5, 7, 8, 11) y ( 6, 7, 7, 9, 14) 2. x (-3, -1, 2, 5, 7) y (9, 5, 4, -5, -7)

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?