To solve this problem, we make use of the Binomial
Probability equation which is mathematically expressed as:
P = [n! / r! (n – r)!] p^r * q^(n – r)
where,
n = the total number of gadgets = 4
r = number of samples = 1 and 2 (since not more than 2)
p = probability of success of getting a defective gadget
q = probability of failure = 1 – p
Calculating for p:
p = 5 / 15 = 0.33
So,
q = 1 – 0.33 = 0.67
Calculating for P when r = 1:
P (r = 1) = [4! / 1! 3!] 0.33^1 * 0.67^3
P (r = 1) = 0.3970
Calculating for P when r = 2:
P (r = 2) = [4! / 2! 2!] 0.33^2 * 0.67^2
P (r = 2) = 0.2933
Therefore the total probability of not getting more than
2 defective gadgets is:
P = 0.3970 + 0.2933
P = 0.6903
Hence there is a 0.6903 chance or 69.03% probability of
not getting more than 2 defective gadgets.
It took 8 weeks because follow 15 to the dot then go down and you see the answer
Answer:3
Step-by-step explanation:
8 times 3 times 1/2 =12
2 times 1/2 times 4=4
12/4=3
Change in value = 87 - 42 = 45
percentage change = 45/42 x 100 = 107%
Answer:
Volume of a cube= 1/8 cubic meter
We know that volume of a cube= side x side x side
= 
From here, we get side of cube= 
meter
Hence, the side of a cube = meter
We have to find a fraction, when it is multiplied by itself
x = 
Here we get our answer
