Construct the confidence interval for the population mean p. C=0.95, x = 4.2, 0 = 0.4, an
d n = 59
A 95% confidence interval for p is
(Round to two decimal places as needed.)

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

b. 2 and 4

step-by-step explanation: