In a wireless automatic meter reading system, a base

station sends out a wake-up signal to nearby elec-

tric meters. On hearing the wake-up signal, a meter

transmits a message indicating the electric usage.

Each message is repeated eight times.

(a) If a single transmission of a message is success-

ful with probability p, what is the PMF of N , the

number of successful message transmissions?

(b) I is an indicator random variable such that I

= 1

if at least one message is transmitted success-

fully; otherwise I

= 0. Find the PMF of I

nada

step-by-step explanation:

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation:

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation: