Answer:
Step-by-step explanation:
Given that X is the number of months between successive payments
Cumulative distribution function of X is

a) PMF of x would be

b) 
Answer:
a) 490
b) 240
Step-by-step explanation:
b) It is convenient to answer part B first.
The number owning only a fax will be the number owning a fax less the number that own both a fax and a copier:
420 -180 = 240 . . . . number owning only a fax
__
a) The number owning one or the other will be the number owing a copier (which includes those owning both) plus the number owning only a fax:
250 +240 = 490 . . . . number owning either
_____
If you want to work part A first, then you need to use the relation ...
n(A∪B) = n(A) +n(B) -n(A∩B)
Answer:
wich one
Step-by-step explanation:
The tank hold 15 gallons.Because you divide 16.50 by 1.10 .
Fractions are numbers represented by the quotients of two integers
Rory's product is less than Maranda's because 13/9 is less than 13/3
<h3>How to determine why Rory has a lesser product</h3>
The expressions are given as:
Maranda: 4 1/3 * 4 1/3 * 1/3
Rory: 4 1/3 * 1 4/9
For Maranda, we have:

Rewrite the fraction

For Rory, we have:

Rewrite the fraction

When Maranda and Rory's expressions are compared, we have:
13/9 is less than 13/3
Hence, Rory's product is less than Maranda's because 13/9 is less than 13/3
Read more about fractions at:
brainly.com/question/11562149