For Questions 1 - 3: A large governmental survey of dental care among 2- to 17-year-old children found the following distribution of times since last visit to the dentist.| Time since last visit | Probability ||------------------------------------------------------|-------------|| 6 months or less | 0.57 || More than 6 months but no more than a year | 0.18 || More than 1 year but no more than 2 years | 0.08 || More than 2 years but no more than 5 years | 0.03 || More than 5 years | ? |The chart above shows the probability distribution of time since the last dental visit for children aged 2 to 17, based on a governmental survey. The table displays the various time intervals and their corresponding probabilities, with the last category (more than 5 years) having an unspecified probability. These probabilities add insight into the dental care patterns among children in this age group.

Answered: Image /qna-images/answer/3b20d047-936d-48e7-944f-4eafe2c504a5.jpg

Answered: For Questions 1-3: A large governmental…

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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1. In a certain student population, incomes are normally distributed with a mean of $1000 per month and a standard deviation of $200 per month. If we randomly select five students from this population, what is the probability that their total monthly income is greater than $5500?
Suppose the age that children learn to walk is normally distributed with mean 11 months and standard deviation 1 month. 6 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. What is the distribution of x? - N( c. What is the probability that one randomly selected person learned to walk when the person was between 10.5 and 12.5 months old? d. For the 6 people, find the probability that the average age that they learned to walk is between 10.5 and 12.5 months old. e. For part d), is the assumption that the distribution is normal necessary? Yes No f. Find the IQR for the average first time walking age for groups of 6 people. Q1 = Q3 IQR: || months months months
3.7 LA weather, Part I: The average daily high temperature in June in LA is 78°F with a standard deviation of 5°F. Suppose that the temperatures in June closely follow a normal distribution. a) What is the probability of observing an 84°F temperature or higher in LA during a randomly chosen day in June? Round your answer to 4 decimal places. b) How cool are the coldest 10% of the days (days with lowest average high temperature) during June in LA? Round your answer to 1 decimal place.
If the standard error of the mean is 10 years of experience for a sample of consisting of 40 workers, what is the probability that the sample mean will be between 13 and 20 years for a population with a mean of 17 years experience. YOUR ANSWER SHOULD BE BETWEEN O AND 100 AND ROUNDED TO 4 DECIMAL PLACES. (e g. 59.5321 would be 59.5321%)
I want correct explanation.
A population has a mean of 50 and a standard deviation of 19 If a random sample of 36 is taken, what is the probability that the sample mean is each of the following? a . Greater than 50. b. less than 52. C. less than 49. d.between 45.5 and 54.5 e and Between 50.5 and 51.1
7. The following cumulative distribution characterizes length of residence for a large number of individuals in a city. Years Cumulative Probability 0-1 .115 365 535 675 1-2 2-5 5-10 10-20 20-40 .945 985 a. What is the range of median length of residence?
Question 2: Arandom variable is distributed normally with mean 3200 and standard deviation 800. Determine the probability of greater than 4000?
1)30% of flowers of a certain species bloom early (before May 1st). You work for an arboretum and have a display of these flowers.In a row of flowers, what is the probability that you will observe more than 4 flowers before you see the first one that blooms early? Round your answer to four decimal place
To the nearest tenth of a percent, the highest consumer price index was occurred in the year
8. Describes the probability of a particular outcome in a series of experiment where the outcome has two distinct possibilities, success or failure. A. Exponential distribution B. Normal distribution C. Probability distribution D. Binomial distribution
Suppose the age that children learn to walk is normally distributed with mean 12 months and standard deviation 1.5 month. 15 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places vwhere possible. a. What is the probability that one randomly selected person learned to walk when the person was between 11.5 and 12.5 months old? b. For the 15 people, find the probability that the average age that they learned to walk is between 11.5 and 12.5 months old. c. For part b, is the assumption that the distribution is normal necessary? O Yeso No d. Find the IQR for the average first time walking age for groups of 15 people. Round to two decimal places. Q1 = months Q3 = months IQR: months

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