Questions LLC
Login
or
Sign Up
Ask a New Question
Math
Statistics
If the random variable z is the standard normal score and a > 0, is it true that P(z > -a) = P(z < a)? Why or why not?&
1 answer
yes
the curve is symmetric about z=0
You can
ask a new question
or
answer this question
.
Related Questions
Let X be a standard normal random variable. Let Y be a continuous random variable such that
fY|X(y|x)=1/√2π−−exp(−(y+2x)
Let Θ be a Bernoulli random variable that indicates which one of two hypotheses is true, and let P(Θ=1)=p. Under the
The random variable X has a standard normal distribution. Find the PDF of the random variable Y , where:
1. Y = 5X−7 . 2. Y =
Consider a binomial random variable where the number of trials is 12 and the probability of success on each trial is 0.25. Find
Problem 4. Gaussian Random Variables
Let X be a standard normal random variable. Let Y be a continuous random variable such that
The random variable X follows normal distribution.P(X<35)=0.2 and P(35<X<45)=0.65.Find mean and standard deviation.
Answer as
Let x be a continuous random variable that follows a normal distribution with a mean of 200 and a standard deviation 25.
Find the
Let X be a standard normal random variable. Another random variable is determined as follows. We flip a fair coin (independent
10th grade New York public school students taking a standardized English test produced test scores that were normally
Let X be a standard normal random variable. Let Y be a continuous random variable such that
fY|X(y|x)=1/√2π*exp(−(y+2x)^2/2)
