Aye i need math sos what is the correlation coefficient r for the data set? enter your answer to the nearest hundredth in the box. r= x y 25 240 26 242 27 230 28 229 28 220 28 219 29 200 30 202 31 184 32 180

The other answer is correct, it says "First, find the mean of all of your x-values, and then find the mean of all of your y-values, 28.4 and 214.6 respectively. Afterwards, find the standard deviation of x and y. Then, plug it into the formula for the correlation coefficient."

So R does equal  -0.9647

But don't forget to round it to the nearest hundredth, like the question says. I also did the test so I know this answer is correct.

lol yeah it's -0.96

x=0

step-by-step explanation:

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.