Find the length of the segment. A
B
C D
E
-4 -3
2
-1
0
1
2
3
4
segment CD
segment BC
segment AC
segment EA
segment DE

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?