What percentage of the general u. s. population have bachelor's degrees? the statistical abstract of the united states, 120th edition, gives the percentage of bachelor's degrees by state. for convenience, the data are sorted in increasing order.
18, 19, 19, 19, 20, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 26, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 29, 29, 30, 32, 32, 33, 33, 35, 36, 39
(a) compute the ¯xx¯ and ss of the data.
¯x= . (round your answer to 2 decimal places.)
s= . (round your answer to 2 decimal places.)
(b) find the z-score of each of the following data value:
x=27, z=. (strictly round your answer to 2 decimal places.)
x=27, z= . (strictly round your answer to 2 decimal places.)
x=19, z= . (strictly round your answer to 2 decimal places.)

could

step-by-step explanation:

u send me a picture of ur work

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

hence, the required result is

step-by-step explanation:

suppose we have two matrices a and b

we will assume the two matrices

we have to compute b-a which means subtracting corresponding elements of a from b.

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