The table below represents the probability density function for the random variable X. Find the standard deviation of X. P(X = x) 1/6 1/3 9. 1/2 Select the correct answer below: O 2.24 О 4.5 6.38 O 1.38

The table below represents the probability density function for the random variable X. Find the standard deviation of X. P(X = x) 1/6 1/3 9. 1/2 Select the correct answer below: O 2.24 О 4.5 6.38 O 1.38

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: The probability distribution of the discrete random variable X is given below. 3 3-x f(x) = QO'@'* ,…

A: Given f(x)=(3x)(14)x(34)3-x , x=0,1,2,3

Q: Assume that the random variable X is normally distributed, with mean u=80 and standard deviation…

Q: The following figure is a probability density curve that represents the grade point averages (GPA)…

A: Answer:- Given, The probability density curve is, Using formula , Total Probability = 1

Q: Assume that ? is a random variable has a gamma distribution with (alpha) = 3 and (beta) = 10. A)…

A: Here alpha = 3 , beta = 10 Mean = 3×10 = 30 Standard deviation = 10 √3 = 17.32

Q: In the US, systolic blood pressure is a random variable that is normally distributed with a mean of…

Q: et ? be the random variable with the time to hear an owl from your room’s open window (in hours).…

A: Given:

Q: Suppose Z has the standard normal distribution. Find the cumulative distri- bution function, density…

A: Given information: Z has the standard normal distribution.

Q: The time taken by brake discs to overheat on construction equipment is normally distributed with…

Q: Assume the random variable x is normally distributed with mean μ=82 and standard deviation σ=5. Find…

Q: he probability that you will win a game is π=0.11π=0.11. If you play the game 965 times, what is…

A: probability that you will win a game is , p = π = 0.11 Let X represent the number of games (out of…

Q: According to a study, the time between taking a pain reliever and getting relief is normally…

Q: Assume the random variable x is normally distributed with mean μ=80 and standard deviation σ=5.…

A: Answer- Assume the random variable x is normally distributed with meanμ=80and standard…

Q: A sample of 50 data points is collected, and a histogram plotted: 0.25 0.20 0.15 0.10 0.05 0.00 0 2…

A: mean is 8, standard deviation is 4

Q: Assume the random variable x is normally distributed with meanu=81 and standard deviation o = 4.…

Q: Assume that the amounts of weight that male college students gain during their freshman year are…

A: The standard score measure the deviation of each observation from the mean. It is calculated by the…

Q: Assume that the amounts of weight that male college students gain during their freshman year are…

Q: Assume the random variable x is normally distributed with mean μ = 85 and standard deviation o=4.…

A: Given that the data is normally distributed with mean 85 and standard deviation 4.Mean () =…

Q: Assume the random variable x is normally distributed with mean = 50 and standard deviation o=7. Find…

A: Given:

Q: Assume that the random variable X is normally distributed, with mean µ = 50 and standard deviation o…

A: Given: Population Mean,μ = 50 Population Standard Deviation,σ = 7

Q: Assume the random variable x is normally distributed with mean u = 90 and standard deviation o = 4.…

A: Given that Let X denotes random variable having distribution Normal with mean =90 and standard…

Q: Assume the random variable x is normally distributed with mean μ=85 and standard deviation σ=4. Find…

A: We have find givan probability...

Q: Assume that the random variable x is normally distributed with mean u = 70 and standard deviation o…

Q: Assume the random variable x is normally distributed with mean u = 85 and standard deviation o = 5.…

A: Given: μ=85σ=5 The z-score is given by, z=X-μσ

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Ley Z be the random variable from standard normal distribution with mean = 0°C and standard…

Q: 1. Assume that Z is a standard normal random variable (i.e., it is a normal random variable with…

A: It is an important part of statistics. It is widely used.

Q: The table below represents the probability density function for the random variable X. Find the…

A: Solution: From the given information, the probability density function for the random variable X is

Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

100%

The table below represents the probability density function for the random variable X. Find the standard deviation of X.
P(X = x)
1/6
1/3
9.
1/2
Select the correct answer below:
O 2.24
О 4.5
6.38
O 1.38

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

Let x be a random variable that represents the average daily temperature (in degrees Fahrenheit) in July in a town in Colorado. The x distribution has a mean μ of approximately 75°F and standard deviation σ of approximately 8°F. A 20-year study (620 July days) gave the entries in the rightmost column of the following table. I II III IV Region under Normal Curve x°F Expected % from Normal Curve Observed Number of Days in 20 Years μ – 3σ ≤ x < μ – 2σ 51 ≤ x < 59 2.35% 15 μ – 2σ ≤ x < μ – σ 59 ≤ x < 67 13.5% 82 μ – σ ≤ x < μ 67 ≤ x < 75 34% 209 μ ≤ x < μ + σ 75 ≤ x < 83 34% 224 μ + σ ≤ x < μ + 2σ 83 ≤ x < 91 13.5% 75 μ + 2σ ≤ x < μ + 3σ 91 ≤ x < 99 2.35% 15 (a) Remember that μ = 75 and σ = 8. Examine the figure above. Write a brief explanation for columns I, II, and III in the…
Let z be a random variable with a standard normal distribution. Find P(–1.12 ≤ z ≤ 2.58). Use 4 decimal places.
The probability density of a random variable X is given in the figure below. From this density, the probability that X is at least 1.9 is: . Give your answer to at least 4 decimal places.
Assume the random variable x is normally distributed with mean μ = 84 and standard deviation o=5. Find the indicated probability. P(x <76) P(x<76) = (Round to four decimal places as needed.) C...
Assume that the random variable X is normally distributed, with mean μ = 110 and standard deviation o=5. Compute the probability P(X> 114). 0000 0.7881 0.2119 0.2420 0.1977
Assume the random variable x is normally distributed with mean u = 82 and standard deviation o = 5. Find the indicated probability. P(65
Assume the random variable x is normally distributed with mean u = 88 and standard deviation o = 4. Find the indicated probability. P(77
Assume that the random variable X is normally distributed, with mean μ = 80 and standard deviation o=16. Compute the probability P(X< 100). 0.8849 0.8944 0.9015 0.1056 ....
The table below represents the probability density function for the random variable X. Find the standard deviation of X Round the final answer to two decimal places. 1/5 2/5 2/5 4 8 O Help copy to ClipboardDownload cSV
Assume that the random variable X is normally distributed, with mean μ=50 and standard deviation σ=12. Compute the probability P(X<65). 0.9015 0.8849 0.1056 0.8944
Let x be a random variable that represents the average daily temperature (in degrees Fahrenheit) in July in a town in Colorado. The x distribution has a mean μ of approximately 75°F and standard deviation σ of approximately 8°F. A 20-year study (620 July days) gave the entries in the rightmost column of the following table. I II III IV Region under Normal Curve x°F Expected % from Normal Curve Observed Number of Days in 20 Years μ – 3σ ≤ x < μ – 2σ 51 ≤ x < 59 2.35% 16 μ – 2σ ≤ x < μ – σ 59 ≤ x < 67 13.5% 76 μ – σ ≤ x < μ 67 ≤ x < 75 34% 209 μ ≤ x < μ + σ 75 ≤ x < 83 34% 220 μ + σ ≤ x < μ + 2σ 83 ≤ x < 91 13.5% 87 μ + 2σ ≤ x < μ + 3σ 91 ≤ x < 99 2.35% 12 1. Remember that μ = 75 and σ = 8. Examine the figure above. Write a brief explanation for columns I, II, and III in the…
The table below gives a discrete probability distribution x Pr(X=x) 1 0.1883 4 0.1618 7 0.1392 10 0.1199 13 0.1032 16 0.089 19 0.0763 22 0.0657 25 0 Summary metrics: Calculate the theoretically exact mean, variance (sigma^2) , and standard deviation , for the distribution. Enter your answer as a comma separated list to four decimal places, e.g. 0.1234, 0.2324, 0.4567, etc.