Answer:
8
Step-by-step explanation:
8x+13 + 12x +7 = 180 ( supplementary angles)
or, 20x + 20 = 180
or, 20x = 160
or, x = 160/20
x= 8
Answer:
(a) Sample Space
(b) PMF
(c) CDF
Step-by-step explanation:
Solving (a): The sample space
From the question, we understand that at most 3 cars will be repaired.
This implies that, the number of cars will be 0, 1, 2 or 3
So, the sample space is:
Solving (b): The PMF
From the question, we have:
can be represented as:
Substitute and
Also note that:
Substitute and
Substitute
Solve for P(1)
To calculate others, we have:
Hence, the PMF is:
<em>See attachment (1) for histogram</em>
Solving (c): The CDF ; F(x)
This is calculated as:
For x = 0;
We have:
For x = 1
For x = 2
For x = 3
Hence, the CDF is:
<em>See attachment (2) for histogram</em>
Answer:
A number
Step-by-step explanation:
maths
The wardrobe is 3x2 inches and the tree is 18 feet
Answer:
u prolly will know if u payed attention in class
Step-by-step explanation: