Question

When 2 defective items are extracted one by one in a partition consisting of 6 products and checked, Let X be the number of tests before finding the last defective item

find the probability distribution of X.

Draw a graph of the distribution function F (x) of X ·

Calculate the mean μ and standard deviation σ of X.

please explain

hint x=2,P(x)=1/15

if you dont get this dont answer please

Answer 1

x where nunnur flut, dreyer e laot da chive ibn be γ.v. for nd dofectiuve item tejals contano ldalective item omd Jea non-ola ective ơnor o, PCX) x 1,1,3,1,5 2. 3 4 PCx) 4. I S 15 15 15 15 y=1,1,3,45 χ(x+1) 30 lo IS 15 5 2345x

IS 3 I S

1 S 1.5 12 G) amda J14 3 ョ1-2472