Question

2. A desk drawer contains five pens, three of which are dry.
(0) The pens are selected at random one by one until a good pen found. The
sequence of test results is noted. What is the sample space.
Suppose that only the number and not the sequence, of pens tested in
part(i) is noted. Specify the sample space.​

Answer 1

Answer:

Let the event D represents dry pen.

Let the event G represents Good pen.

The desk drawer contains pens.

Number of Dry pens 4

Number of Good pens 2

Answer 2

Answer:

Total pens=5

i)S={G,DG,DDG,DDDG}

ii)S={1,2,3,4}

Step-by-step explanation:

GOOD pens=G

Dry pens=D

i)S={G,DG,DDG,DDDG}

ii)Sequence number is noted so

S={1,2,3,4}