On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 114 anda standard deviation of 16. Suppose one individual is randomly chosen. Let X = IQ of an individual.a. What is the distribution of X? X - N(b. Find the probability that a randomly selected person's IQ is over 112.to 4 decimal places.Round your answerc. A school offers special services for all children in the bottom 6% for IQ scores. What is the highest IQscore a child can have and still receive special services?Round your answer to 2 decimalplaces.d. Find the Inter Quartile Range (IQR) for IQ scores. Round your answers to 2 decimal places.Q1:Q3:IQR:

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Answered: On a planet far far away from Earth, IQ…

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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Refer to the accompanying table, which describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Find the mean and standard deviation for the number of girls in 8 births. Click the icon to view the data table. The mean is u= girl(s). (Round to one decimal place as needed.) The standard deviation is o = e# girl(s). (Round to one decimal place as needed.) Table of numbers of girls and probabilities Number of Girls x 0 1 2 3 4 5 6 7 8 átv P(x) 0.004 0.034 0.117 0.218 0.278 0.217 0.102 0.027 0.003 D - X NiZ Next
A manufacturer collected a sample of 56 bolts of cloth from a day's production. Each bolt is carefully inspected and the number of imperfections is recorded in the following table. According to the given table, mean is median is mode is (Round your answer to three decimal places if needed.) Number of imperfections 1 Number of bolts 39 9. 3 3. 2. 5.
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The distribution of the number of hours that a random sample of people spend doing chores per week is shown in the pie chart. Use 32 as the midpoint for "30+ hours." Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Click the icon to view the pie chart. First construct the frequency distribution. Weekly study hours Class Frequency, f 0-4 5-9 0-4 hours (3 people) 10-14 5-9 hours (14 people) 10-14 hours (19 people) 15-19 15-19 hours (21 people) 20-24 20-24 hours (14 people) O 25-29 hours (13 people) 25-29 30+ hours (4 people) 30+ Print Done
The average number of kilos of meat a person consumes in a year is 90 kilos. Assume that the standard deviation is 10 kilos and the distribution is approximately normal. If a sample of 45 individuals is selected, find the probability that the mean of the sample will be 87 kilos or greater per year. Express your answer in percent form with 2 decimal places (with percent symbol - e.g. 10.00%) type your answer...
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The average number of kilos of meat a person consumes in a year is 100 kilos. Assume that the standard deviation is 11 kilos and the distribution is approximately normal. If a sample of 40 individuals is selected, find the probability that the mean of the sample will be 105 kilos or greater per year. Express your answer in percent form with 2 decimal places (with the percent symbol - e.g. 10.00%). type your answer... Next
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A sample of n = 10 scores has a mean of 20. A person with a score of 1 is replaced with a person who has a score of 31. Find the new mean. a.31 b.17 c.21 d.23
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