edofA student concludes, based on the density curve shown below,that the probability of a value of 45 is between .04 and .05.What is wrong with this student's conclusion?0.080.07-0.06-0.05-0.040.03-0.020.01-0.0030Select one:C.35An40OCT445505560a. nothing; this student is correctO b. the probability of a value of 45 is obtained by lookingat the area under the curve to the left of 45the values on the y axis are not probabilitiesClear my choice65tv70?2 dlMacBook Air

Based on the density curve, the student concludes that the probability of obtaining the value 45 is…

Answered: A student concludes, based on the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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If ?1, ?2, … , ?? are independent random variables having exponential distributions with the same parameter ?.(a) Find the probability density of the random variable ? = ?1 + ?2 + ⋯ + ??.
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Data were collected from a survey given to graduating college seniors on the number of times they had changed majors. From that data, a probability distribution was constructed. Use the table below to answer the following questions, you may round your answers to three decimal places, if necessary. aP(x) 0.192 1 0.203 0.281 3 0.189 4 0.077 0.035 0.019 0.003 0.001 a. What is the probability that a randomly selected student changed their major at least once? Preview b. What is the probability that a randomly selected student changed their major fewer than two times? Preview c. What is the probability that they changed majors more than three times? Preview 479
Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15 Is this model a probability distribution? A. Yes. B. No. C. Maybe.
Identify the following probability distributions as discrete or continuous. Justify your answer. a 012 3 4 5 6 7 8 9 10 b Probability Distribution of X 0.20 0.15 0.10 0.05 0.00 2 3 45 6 7 8 9 10 11 12 Outcome 10 Fgegold
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In a probability density function such as a Normal or bell-shaped curve, the area under the curve is used to make predictions about likelihoods and probabilities. What is the area (use a proportion) under the curve from the lowest possible value to the highest possible value?
For a standard normal distribution, determine the probabilities in parts a through d below. page 1 of the standard normal probability table. Second digit of z First digit of z 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 -3 0.0013 0.0013 0.0013 0.0012 0.0012 0.0011 0.0011 0.0011 0.001 0.001 -2.9 0.0019 0.0018 0.0018 0.0017 0.0016 0.0016 0.0015 0.0015 0.0014 0.0014 -2.8 0.0026 0.0025 0.0024 0.0023 0.0023 0.0022 0.0021 0.0021 0.002 0.0019 -2.7 0.0035 0.0034 0.0033 0.0032 0.0031 0.003 0.0029 0.0028 0.0027 0.0026 -2.6 0.0047 0.0045 0.0044 0.0043 0.0041 0.004 0.0039 0.0038 0.0037 0.0036 -2.5 0.0062 0.006 0.0059 0.0057 0.0055 0.0054 0.0052 0.0051 0.0049 0.0048 -2.4 0.0082 0.008 0.0078 0.0075 0.0073 0.0071 0.0069 0.0068 0.0066 0.0064 -2.3 0.0107 0.0104 0.0102 0.0099 0.0096 0.0094 0.0091 0.0089 0.0087 0.0084 -2.2 0.0139 0.0136 0.0132 0.0129 0.0125 0.0122 0.0119 0.0116 0.0113 0.011 -2.1 0.0179 0.0174 0.017 0.0166 0.0162 0.0158 0.0154 0.015…
The figure above shows the probability density function for the random variable x. What is P(3≤x<7)?
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A survey of almost 44,000 two-child families yielded the accompanying table. The probability distribution of x, the number of boys in a two-child family is given below. Find E(x) and give a practical interpretation of its value. Gender Configuration Proportion D Girl-girl (GG) Boy-girl (BG) Girl-Boy (GB) 0.215 0.267 0.256 P(x) 0.215 0.523 0.262 Boy-boy (BB) 0.262 Choose the correct answer below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) O A. If a very large number of households were sampled, on average, there would be E(x) = boys. O B. If a very large number of two-child households were sampled, on average, there would be E(x) = boys. of getting a family with a boy. %3D O C. If a very large number of two-child households were sampled, there would be a probability of E(x) = O D. In the sample of 44,000 households, each household had E(x) = boys.

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A student concludes, based on the density curve shown below, that the probability of a value of 45 is between .04 and .05. What is wrong with this student's conclusion? 0.08- 0.07 0.06- 0.05- 0.04- 0.03 0.02- 0.01 0.00 30 35 40 45 50 55 60 65 70