Rex wanted to estimate the mean finishing time for the approximately 50 , 000 50,00050, comma, 000 finishers at the New York City Marathon. He took a random sample of 10 1010 finishers' times, which were skewed to the right with a sample mean of x ˉ = 271.5 x ˉ =271.5x, with, \bar, on top, equals, 271, point, 5 minutes. He's considering using his data to make a confidence interval for the mean finishing time. Which conditions for constructing a t tt interval have been met? Choose all answers that apply: Choose all answers that apply: (Choice A) A The data is a random sample from the population of interest. (Choice B) B The sampling distribution of x ˉ x ˉ x, with, \bar, on top is approximately normal. (Choice C) C Individual observations can be considered independent.

i can you with this question sweetie!

step-by-step explanation:

the answer will be the last one

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.