1-)Numberofstudents5311202109363435A group of 380 students have a 4 questions test.Finding the right answer for each question is. TheNumber ofrightanswers0distribution of students with respect to the number ofright answers is as follows.Test at the 0.05 level of significance whether thedistribution is a random variable having binomialdistribution.

The observed data set:Number of right answersNumber of students05311202109363435The total no. of…

Answered: 1-) Number of right answers 0 Number of…

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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Consider the given probability histogram of a binomial random variable. Binomial Random Variable (n = 6, p = 0.9) 0.6 0.5 0.4 0.3 0.2 0.1 0 1 2 3 4 5 6 What are the center and shape of the distribution? Center: 5.4 Shape: skewed right Center: 5.4 Shape: skewed left Center: 6 Shape: skewed left Center: 6 Shape: approximately Normal Probability
A particular fruit's weights are normally distributed, with a mean of 492 grams and a standard deviation of 14 grams. If you pick one fruit at random, what is the probability that it will weigh between 479 grams and 511 grams
Aleks spins a 9 sided spinner 56 times. Each of the nine sides has a different colour on it. He records the number of times that he spins the colour purple. Is it reasonable to approximate this distribution with a normal distribution? Give a reason.
A2
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2 Define the random variable, its type of distribution, and compute for the variable/measure that is being asked. You can follow the example below
The height of women ages 20-29 is normally distributed, with a mean of 63.9 inches. Assume σ=2.9 inches. Are you more likely to randomly select 1 woman with a height less than 65.1 inches or are you more likely to select a sample of 27 women with a mean height less than 65.1 inches? Explain. What is the probability of randomly selecting 1 woman with a height less than 65.1 inches? _____ (Round to four decimal places as needed.)
11s
The top-selling Red and Voss tire is rated 80000 miles, which means nothing. In fact, the distance the tires can run until wear- out is a normally distributed random variable with a mean of 92000 miles and a standard deviation of 8000 miles. A. What is the probability that the tire wears out before 80000 miles? Probability = Round to four decimals CS Scanned with CamScanner
what is the random variable for the height of buildings? how do you find the probability distribution of the data below:
Salaries for teachers in a particular elementary school district are normally distributed with a mean of $41,000 and a standard deviation of $6,200. We randomly survey ten teachers from that district. O Part (a) In words, define the random variable X. O the salary of an elementary school teacher in the district O the number of teachers in the district O the number of teachers in an elementary school in the district O the number of elementary schools in the district O Part (b) O Part (c) O Part (d) Give the distribution of EX. (Round your answers to two decimal places.) EX - NV 41000 6200 O Part (e) Find the probability that the teachers earn total of over $400,000. (Round your answer to four decimal places.) O Part (f) Find the 90th percentile for an individual teacher's salary. (Round your answer to the nearest whole number.) O Part (g) Find the 90th percentile for the sum of ten teachers' salary. (Round your answer to the nearest whole number.) O Part (h) If we surveyed 70 teachers…
79% of U.S. adults think that political correctness is a problem in America today. You randomly select six U.S. adults and ask them whether they think that political correctness is a problem in America today. The random variable represents the number of U.S. adults who think that political correctness is a problem in America today. Answer the questions below. 1.mean of the binomial distribution= 2.varience of the binomial distribution= 3.standard deviation of the binomial deviation=

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