Question 2Consider the probability distribution for number of children in local families.ProbabilityDistributionP(x)0.0310.110.3630.3340.171. Find the mean number of children in local families [ Select ]2. Find the standard deviation of the number of children in local families [ Select ]3. Would 4 children be considered a significantly high number of children? [ Select ]

Answered: Image /qna-images/answer/b421bdee-6389-477b-b78c-22cf7ac27b51.jpg

Answered: Consider the probability distribution…

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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A bus heading to university is always scheduled to arrive at a certain bus stop at 7:30am. The difference between the actual arrival time and 7:30am is normally distributed with mean 0 and standard deviation of 2 minutes.A student who always has a class at 8am decided to be at the bus stop at 7:28am in order to try to guarantee catching this bus. What is the probability that the student will catch the bus on any particular day?Probability = What is the probability that the student will catch the bus at least 4 times out of 5 days?Probability =
Assume that the square footage of a residential house in the US is normally distributed with a mean=1000 and standard deviation=150 square feet. If we select a random house what is the probability that it will be at most 1050 square feet?
How do you do this?
In the country of United States of Heightlandia, the height measurements of ten-year-old children are approximately normally distributed with a mean of 54.6 inches, and standard deviation of 1.9 inches.What is the probability that the height of a randomly chosen child is between 53.35 and 57.95 inches?Use the Normal table and give answer to 4 decimal placesAnswer= __________
The number of pizzas consumed per month by university students is normally distributed with a mean of 11 and a standard deviation of 4. A. What proportion of students consume more than 13 pizzas per month? Probability = B. What is the probability that in a random sample of size 10, a total of more than 130 pizzas are consumed? Probability=
Annual rainfall in an area is normally distributed with an average of 45 inches per year and a standard deviation of 8 inches. 1.What is the probability that the annual rainfall next year is less than 40 inches? 2 What is the probability that the annual rainfall next year is greater than 50 inches? 3 What is the probability that the annual rainfall is greater than 10 inches but less than or equal to 75 inches?
The weight of items produced by a machine is normally distributed with a mean of 260 grams and a standard deviation of 13 grams. (Standard table attached) (Show working wherever possible) 1. What is the probability that an item has a weight of less than 247 grams. (Round to 4 decimals) 2. What is the probability that an item has a weight of more than 275.2 grams. (Round to 4 decimals) 3. What is the probability that an item has a weight between 249.7 grams and 270.3 grams. (Round to 4 decimals) 4. 98.5% of items have a weight more than what value? (Round answer to 2 decimals)
Statisticsghu
The average jail population in the US is 700500 if the distribution is normal in the standard deviation 45000 find the probability that only randomly selected day the gaol population is less than 650000
Short Answer. Supply the correct answer. Write your answer in your notebook. _1. It is a random variable where the data can take infinitely many values. _2. True or False. Getting the probability distribution in discrete random variable is the same in continuous random variable. _3. The graphical form of the probability distribution for continuous random variable is a Problem Solving 1. Sixty eight percent of the marks in a test are between 51 and 64. Assuming this data is normally distributed, what is the standard deviation? 2. Using the table of values find: (a) P(Z 1.32), (c)
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