1/2. 1/6
1/2×3=3/6
3/6+1/6=4/6
4/6=2/3
2/3
Answer:
1) 0.5
2)-2
3)-23
Step-by-step explanation:
1) -3×1=-3
-3+2.5= 0.5
2) -3×1.5=-4.5
-4.5+2.5= -2
3) -3×8.5=-25.5
-25.5+2.5=-23
The true statement is that: plotting the relationship between the variables in a Logistic Regression will form a Sigmoid Curve.
<h3>How to determine the line of a
Logistic Regression </h3>
A Logistic Regression is a nonlinear function, that has the following properties
- The absence of multicollinearity
- No influential outliers
- It is not represented straight lines
Base on the above highlights, we can conclude that the variables form a Sigmoid Curve.
Read more about Logistic Regression at:
brainly.com/question/21344316
Answer:
The expected value of X is 2 with a standard deviation of 1.34.
Step-by-step explanation:
For each speaker, there are only two possible outcomes. Either it is defective, or it is not. The probability of a speaker being defective is independent of other speakers. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:

The standard deviation of the binomial distribution is:

Stereo speakers are manufactured with a probability of 0.1 of being defective
This means that 
Twenty speakers are randomly selected.
This means that 
Let the random variable X be defined as the number of defective speakers. Find the expected value and the standard deviation.


The expected value of X is 2 with a standard deviation of 1.34.
The answer is 11 i think
102-9=93%3=31
102-3=99%9=11