The heights of mature Western sycamore trees (platanus racemosa, a native California plant) follow a normal distribution with average height 55 feet and standard deviation 15 feet. Answer using four place decimals. Find the probability a single mature Western sycamore tree, chosen at random, has a height greater than 65 feet. Find the probability a random sample of four mature Western sycamore trees has a mean height greater than 65 feet. Find the probability a random sample of ten mature Western sycamore trees has a mean height greater than 65 feet.

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo