What is the expected value of X?

X 2 3 5 6 8

P 0.2 0.1 0.25 0.05 0.4

options:

a. 4.6

b. 4.8

c. 5.45

d. 5.95

i think its c but idk pls help

Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second