Consider the following probability table: egin{tabular}{|c|c|c|c|c|} hline( x ) & 0 & 1 & 2 & 3 \ hline( P(X=x) ) & 0.1 & 0.2 & 0.3 & ( k ) \ hline end{tabular} Determine the value of ( k ).
Added by Leonel C.
Close
Step 1
Step 1: Recall that the sum of all probabilities in a probability distribution must equal 1. Show more…
Show all steps
Your feedback will help us improve your experience
Nick Johnson and 64 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The probability distribution for a discrete random variable X is given below: Accordingly, what is the k value? X -3 2 3 P(X=x) 0,2 0,1 0,4 k
Pritesh R.
The probability function of a discrete random variable $X$ is given by $$P(X=x)=\frac{k x}{2}, \text { for } x=12,14,16,18$$ Set up the table showing the probability distribution and find the value of $k$.
Probability Distributions
Random variables
The following is a probability distribution for a random variable $Y$. $$\begin{array}{|l|c|c|c|c|} \hline y & 0 & 1 & 2 & 3 \\ \hline P(Y=y) & 0.1 & 0.11 & k & (k-1)^{2} \\ \hline \end{array}$$ a) Find the value of $k$ b) Find the expected value.
Recommended Textbooks
Elementary and Intermediate Algebra
Algebra and Trigonometry
Transcript
600,000+
Students learning Algebra with Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD
