Square room in amber's home has an area of 128 square feet. which is the best estimate of one side of the room? *

0.1587

Step-by-step explanation:

let X be the length of time (in seconds) an individual takes to use an ATM

X is N(100,10)

T = the duration (again, in seconds) of the period that starts when the first individual in queue accesses the ATM and ends when the last individual in queue leaves the ATM.

Required probability = P(T<360)

Here T = 4x

Hence T is N with mean = 400 and std dev = 40

Or = Z is N(0,1)

=0.5-0.3413

=0.1587