Answer: The probability that both televisions work is 0.5625 .
The probability at least one of the two televisions does not work is 0.4375.
Step-by-step explanation:
Given : Number of televisions received in shipment= 12
Number of defective televisions received in shipment= 3
Then proportion of defective televisions =![\dfrac{3}{12}=0.25](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B12%7D%3D0.25)
Using binomial probability formula, the probability of getting success in x trials is given by :-
![P(x)=^nC_xp^x(1-p)^{n-x}](https://tex.z-dn.net/?f=P%28x%29%3D%5EnC_xp%5Ex%281-p%29%5E%7Bn-x%7D)
If two televisions are randomly selected, then the probability that both televisions work will be :-
![P(0)=^2C_0(0.25)^0(0.75)^2=(0.75)^2=0.5625](https://tex.z-dn.net/?f=P%280%29%3D%5E2C_0%280.25%29%5E0%280.75%29%5E2%3D%280.75%29%5E2%3D0.5625)
The probability at least one of the two televisions does not work will be :-
![P(x\geq1)=1-P(0)=1-0.5625=0.4375](https://tex.z-dn.net/?f=P%28x%5Cgeq1%29%3D1-P%280%29%3D1-0.5625%3D0.4375)
Answer:
£26 £23 £27
Step-by-step explanation:
If you add them all up, it will equal £76
answer:
8 pennies,16 dimes,13 nickels,13 quarters
Step-by-step explanation:
total number of coins = 50
16% are pennies
16% of 50
16/100 x 50=(16x50)/100=800/100=8
Pennies = 8
32% are dimes
32% of 50
32/100 x 50=(32x50)/100=1600/100=16
Dimes = 16
5 more nickels than pennies
Pennies = 8
nickels = 8 + 5 = 13
nickels = 13
8+16+13=37
50 - 37 = 13
13 quarters
pennies = 8, dimes = 16, nickels = 13, quarters = 13
Since g(x) varies with x, therefore:
g(x) = k/x where k is a constant.
So, first we need to get k. We are given that g(x) = 0.2 when x = 0.1
Substitute with these values to get k as follows:
g(x) = k/x
0.2 = k/0.1
k = 0.2*0.1 = 0.02
Now, the equation became:
g(x) = 0.02 / x
We need to get the g(x) when x = 1.6
Therefore, we will substitute with x in the equation and calculate the corresponding g as follows:
g(x) = 0.02 / 1.6
g(x) = 0.0125
12)
(intro) Slope is change in y divided by change in x (axes). Here, the y axis is depth and the x axis is hours. So, the slope is change in depth between any two points, divided by the change in hours between the same points. The slope of this line is half a foot depth divided by 2 hours.
a) So, the slope is 0.5 / 2 = 0.25, or 1/4.
b) The graph shows a constant rate of change because the line is straight (it increases at the same speed. If the line was curving, it would not be a constant rate of change).
c) Yes, because the line has a constant rate of change now.