4) A math instructor at Futurama Community College has found, based on studies from the years 3000 to 3009, that the number of students enrolled in Relevant Applied Math in a given year can be predicted from the regression equation û = 494 - 267., (where z is the number of years after 3000; x = 4, for example, means 3004) and that 82.8% of the variation in the number of students enrolled can be explained by the year. a) What is the slope of the regression line? (3) b) What is the value of r2, the coefficient of determination? (3) c) Use the regression equation to predict the number of students enrolled in the course in 3008. (3) Is there a mistake in d) The instructor's data show 279 students enrolled in 3008. the regression equation? Explain. (2)

x+y = 29, 5x + 2y = 100

step-by-step explanation:

i'm guessing it was a multiple first option was the correct answer

i can you with this sweetie!

step-by-step explanation:

i would be happy to . most people on would also love to i'm sure. if you just want someone who has done algebra before and want a little more personal relationship than just begging strangers for , i can certainly be of service. i do have college myself so i might not be 24/7.

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560