About 90% of american adults had chickenpox before adulthood. we now consider a random sample of 120 american adults. (a) how many people in this sample would you expect to have had chickenpox in their childhood? (enter your answer as a whole number.) people and with what standard deviation? (round your answer to two decimal places.) people (b) would you be surprised if there were 104 people who have had chickenpox in their childhood? (round your answer to two decimal places.) since z = , which is two standard deviations away from the mean, it surprising for there to be 104 people who have had chickenpox in childhood. (c) what is the probability that 104 or fewer people in this sample have had chickenpox in their childhood? (round your answer to four decimal places.) how does this probability relate to your answer to part (b)? this probability coincides with the result of part (b). this probability does not coincide with the result of part (b)

answer: there are 453.592 grams in a pound.

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

the correct answer is c

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200