+2448 James has 10 markers in a backpack. One of them is yellow and one is blue. What is the probability James will reach into the backpack without looking and grab the yellow marker and then reach in a second time and grab the blue marker if:
(a) the first marker is not replaced?
(b) the first marker is replaced?
Express your answers as fractions in simplest form.
a. (a) 1/19 (b) 1/10
b. (a) 1/10 (b) 1/19
c. (a) 1/90 (b) 1/100
d. (a) 1/100 (b) 1/90
