Suppose the proportion X of surface area in a randomly selected quadrat that is covered by a certain plant has a standard beta distribution with a = 4 and (a) Compute E(X) and V(X). (Round your answers to four decimal places.) E(X) = 0.5714 V(X) = 0.0306 (b) Compute P(X < 0.4). (Round your answer to four decimal places.) 0.1792 (c) Compute P(0.4 < X < 0.6). (Round your answer to four decimal places.) 0.4192 (d) What is the expected proportion of the sampling region not covered by the plant? (Round your answer to four decimal places.)

Suppose the proportion X of surface area in a randomly selected quadrat that is covered by a certain plant has a standard beta distribution with a = 4 and (a) Compute E(X) and V(X). (Round your answers to four decimal places.) E(X) = 0.5714 V(X) = 0.0306 (b) Compute P(X < 0.4). (Round your answer to four decimal places.) 0.1792 (c) Compute P(0.4 < X < 0.6). (Round your answer to four decimal places.) 0.4192 (d) What is the expected proportion of the sampling region not covered by the plant? (Round your answer to four decimal places.)

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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For this problem I believe that there is a typo. What I mean by b is actually c
this is copied from chegg. Not even the same question
I need help with just part c. Someone on here already answered it for me but I'm really confused as there are steps missing and I'm not sure what to put in the calculator. " The first quartile separates the lowest 25% of the observations from the higher 75% of the observations. The first quartile is denoted by Q1. The second quartile separates the lower 50% of the observations from the higher 50% of the observations. The second quartile is denoted by Q2.The second quartile is same as median. The third quartile separates the lowest 75% of the observations from the higher 25% of the observations. The third quartile is denoted by Q3. The third quartile can obtained as follows...." Third Quartile is 1 somehow, and I don't understand how it is.
I am sorry I do not understand this. Can you send a handwritten proof instead, please.
. Explain what primary concept does the proof of the Root test use?
is this usual or unusual
could this be done by a human?
sorry I should of been clear, I need letter B to be worked out.
For one month, 500 elementary students kept a daily record of the hours they spent watching television. The average number of hours per week spent watching television was 28. The researchers conducting the study also obtained report cards for each of the students. They found that the students who did well in school tended to spend less time watching television than those students who did poorly. Listed are several possible statements concerning the results of this research. Place a check by every statement that you agree with based on this study. a. Even though students who did well watched less television, this doesn't necessarily mean that watching television hurts school performance. b. One month is not a long enough period of time to estimate how many hours the students really spend watching television. c. The sample of 500 is too small to permit drawing conclusions about elementary students in general. d. I don't agree with any of these statements. e. If a student decreased the…
Can i share my screen and show you a homework problem that I thought I did right but is wrong and I don't know what I've done wrong?
That is the first answer I got and it was also marked as incorrect. I am not sure why. I also tried the rounded version and it didn't work.