(StarMetro) Suppose you did this process of observing the difference between the actual and scheduled arrival times of 17 busses and then computed the sample mean . What is the 99th percentile of the sample mean ¯? Round your answer to three decimal places.

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it