Answer:
x could be literally anything.
Step-by-step explanation:
you need to set the expression -8x + 8 to be equal to something otherwise it can't be solved for a specific value. Noob mistake!
Answer:
Vota Trump
Step-by-step explanation:
12x2-8x+1 then 24-8x+1 it should give you 25-8x, I hope it’s right:)
Answer:
a) Binomial distribution, with n=20 and p=0.10.
b) P(x>1) = 0.6082
c) P(3≤X≤5) = 0.3118
d) E(X) = 2
e) σ=1.34
Step-by-step explanation:
a) As we have a constant "defective" rate for each unit, and we take a random sample of fixed size, the appropiate distribution to model this variable X is the binomial distribution.
The parameters of the binomial distribution for X are n=20 and p=0.10.
b) The probability of k defective surge protectors is calculated as:
In this case, we want to know the probability that more than one unit is defective: P(x>1). This can be calculated as:
c) We have to calculate the probability that the number of defective surge protectors is between three and five: P(3≤X≤5).
d) The expected number of defective surge protectors can be calculated from the mean of the binomial distribution:
e) The standard deviation of this binomial distribution is:
Answer:
The correct answer is 4294967296 possible ways to complete such a test.
Step-by-step explanation:
Step 1
The first step is to define the fundamental principle of counting. The fundamental principle of counting states that if a process can be carried out in n steps, where there are ways to complete the first step, ways to complete the second step, , and ways to complete the step, this process can be carried out in ways.
Step 2
We use the fundamental principle of counting with for a total of steps. This test can be carried out in ways. This comes from multiplying 4 by itself 16 times.