Calcular el margen de error para estimar la media población u en los casos siguientesnivel de confianza del 98%; n=64; σ^2=144nivel de confianza del 99%; n=120; σ=100

b. x + 1

step-by-step explanation:

i'am smart

you have to wait a while to reward brainliest if only one person answers. if 2 people answer there should be a "mark brainliest" on their question.

i cant fully remember all of the ranks, here are the ones i remember.

hand, ambitous, ace, genius.