a. Calculate
P(X < 4) (to 3 significant digits).
P(X < 4)=
b. Determine the mean (µ) and standard
deviation (σ) of the distribution (to 3 significant digits).
µ =
σ =
Solution :
Given that,
a = 0
b = 8
(a)
P(x < 4) = (4 - 0) / (8 - 0) = 0.5
(b)
mean = µ = (a + b) / 2 = (0 + 8) / 2 = 4
σ =
[(b - a)2 / 12] =
[(8 - 0)2 / 12] = 2.309
Given that X is a continuous random variable that has a uniform probability distribution, and 0...
Let X be a random variable following a continuous uniform distribution from 0 to 10. Find the conditional probability P(X >3 X < 5.5). Chebyshev's theorem states that the probability that a random variable X has a value at most 3 standard deviations away from the mean is at least 8/9. Given that the probability distribution of X is normally distributed with mean ji and variance o”, find the exact value of P(u – 30 < X < u +30).
A random variable follows the continuous uniform distribution between 30 and 120 a) Calculate the probability below for the distribution. P(60less than or equals≤xless than or equals≤90) b) What are the mean and standard deviation of this distribution? wo neng kan jian wen ti
Identify whether the given value is a discrete random variable, a continuous random variable, or not a random variable. The length of a person's foot Discrete random variable Continuous random variable Not a random variable Question 2 Find the mean and standard deviation of the given probability distribution. Round your answers to 2 places after the decimal point, if necessary. x P (x) 0 0.04 3 0.23 5 0.29 6 0.17 8 0.27 Mean = Standard deviation =
A random variable follows the continuous uniform distribution between 15 and 35. a) Calculate the probabilities below for the distribution. 1) P(x≤30) 2) P(x=33) b) What are the mean and standard deviation of this distribution?
A random variable follows the continuous uniform distribution between 20 and 50 a) Calculate the probabilities below for the distribution. 1) P(x≤40) 2) P(x=39) b) What are the mean and standard deviation of this distribution?
With Explanation Please.
2- Choose the correct answer If the continuous random variable X is uniformly distributed with a mean of 70 and a standard deviation of (10v3). The probability that X lies between 80 and 110 is: a. Farundom variable hass pobabiliy densitE osone o the ab A 1/4 D 2/3 b. If a random variable X has a probability density functiontada 30 +4) 0sxs1 then the variance of X is closest to A/0.084 rre . B 0.519 С...
5. A continuous random variable X follows a uniform distribution over the interval [0, 8]. (a) Find P(X> 3). (b) Instead of following a uniform distribution, suppose that X assumes values in the interval [0, 8) according to the probability density function pictured to the right. What is h the value of h? Find P(x > 3). HINT: The area of a triangle is base x height. 2 0 0
1. The continuous random variable X, has a uniform distribution over the interval from 23 to 43. a) What in the probability density function in the interval between 23 to 43? 6. 7: Total : _ 16 14 /25 b) What is the probability that X is between 26 and 33? c) What is the mean of X? 2. Given that z is a standard normal random variable, a) what is the probability of z being greater than-1.53? b) if...
A random variable follows the continuous uniform distribution between 120 and 260. Calculate the following quantities for the distribution a) P(180 sxs 220) b) P(120sxs170) c) P(x> 160) d) What are the mean and standard deviation of this distribution?
A random variable Xfollows the continuous uniform distribution with a lower bound of-3 and an upper bound of 16. a. What is the height of the density function fo? (Round your answer to 4 decimal places.) t(x) 0.0526 b. What are the mean and the standard deviation for the distribution? (Round your answers to 2 decimal places.) Mean Standard deviation 6.50 5.48 c. Calculate PXs-1). (Round intermediate calculations to at least 4 decimal places and final answer to 4 decimal...