The probability that a randomly chosen student in a statistics class submits his/her homework on time is 0.12. There is 35 student in the class. Each student does his/her homework independently. What is the standard deviation of X, where X is the number of students who submit the homework on time?

The probability that a randomly chosen student in a statistics class submits his/her homework on time is 0.12. There is 35 student in the class. Each student does his/her homework independently. What is the standard deviation of X, where X is the number of students who submit the homework on time?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: If the daily wage of a worker in a large factory has an average of 180 usd, the standard deviation…

A: Given: mean: 180 usd, standard deviation: 5 usd, n = 75.The required probability is…

Q: The average age of accountants is 53 years, with a standard deviation of 5 years. If an accounting…

A: We have to find probability..

Q: Assume that the results are normally distributed. Pedro took an exam in a class in which the mean…

A: The formula for z-score is z = x - μσ where μ is the mean and σ is the standard deviation.…

Q: Five hundred children participated in a field demonstration. Their heights averaged 110cm with a…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 100 and standard…

Q: A statistics professor gave a final exam to a class of 30 students. The exam scores are normally…

A: Given,mean(μ)=75standard deviation(σ)=10

Q: A student has taken a 50-point exam and wants to know how his score of 38 compares to the scores of…

A: It is given that Mean = 40 Standard deviation SD = 4 Score X = 38

Q: he distribution of heights of adult males has a mean of 69 inches and a standard deviation of 4…

A: Solution-: Let, X= The distribution of heights of adult males Given: (inches) We find, P[ he…

Q: how much will the probability that the students are aged above 15 years old change?

Q: A population has a mean of 200 and a standard deviation of 25. A sample of 64 observations will be…

A: We have to find out given probabiity..

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: Given information-We have given that adults have IQ scores that are normally distributed.μ= 105σ =…

Q: Working in the garden pulling weeds/planting flowers burns an average of 200 calories per hour. If…

A: given data μ=200σ=9normal distribution P(200<x<225)=?

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: The chloride concentration in the blood (mmol / liter) averages 104 with a standard deviation of 5.…

A: Given Data: Let X represent the random variable X~ Normal (104, 52) n=200 Therefore, X¯ ~ Normal…

Q: population has a mean of 350 and a standard deviation of 25, determine the probability that a random…

A: GIVEN DATA, μ=350σ=25n=40p(335<x¯<375)=?

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Obtain the Z-score for the random variable X equals 129. The Z-score for the random variable X…

Q: The average height of a certain age group of people is 53 inches. The standard deviation is 4…

A: Let X be the random variable from normal distribution with mean or average (μ) = 53 and standard…

Q: Assume that adults have 1Q scores that are normally distributed with a mean of u = 105 and a…

A: We have to find given probabaility.

Q: A history class has 95 members. If there is a 22% absentee rate per class meeting , find the mean…

Q: Working in the garden pulling weeds/planting flowers burns an average of 200 calories per hour. If…

A: It is given that Mean, μ = 200 Standard deviation, σ = 9 Z-Score, Z = ( X - μ )/σ

Q: Do hardcover and softcover books likely to be found on a professor's shelf have different number of…

A: (a) The null hypothesis is, The alternative hypothesis is, (b) From the Mini tab output, the test…

Q: The mean height of male college students in a large city is 68 inches and the standard deviation is…

A: Solution

Q: ores are normally distributed with a mean of 1518 and a standard deviation of 325. If 1 SAT score…

A: Given: μ=1518, σ=325 The corresponding z-value needed to be computed is: If 1 SAT score is randomly…

Q: Temperatures in a city are distributed approximately normal, with a mean of 69 degrees Fahrenheit…

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

A: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Let "X" be the IQ score of adults.

Q: The intelligence quotient (IQ) score is normally distributed in a certain population of children.…

Q: You want to determine the probability that when seven consumers are randomly selected, exactly two…

A: 1. n = 7, x = 2, p = 0.45, q = 0.552. Mean, μ = 3.15 Standard Deviation, σ = 1.31623. P(X = 2) =…

Q: The score obtained by 800 students in a statistics examination are approximately normally…

A: Given: n=800, μ=78 and σ=7. The z-score is calculated asz=x-μσ=80-787=0.29

Q: The population mean is 20 inches and population standard deviation is 4 inches. A random sample of…

A: mean = 20 s =4

Q: Pharmacist lilly is researching how long the active ingredient in a particular drug is measured in…

A: 1. Denote μ as the population mean time of the drug is active in the liver of people after oral…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: The average time a person spends shopping in a grocery store is 43 minutes. If the time is normally…

A: Given: The average time a person spends shopping in a grocery store is 43 minutes. The time is…

Q: Energy consumption for single family comes is a mean of 1050kw and standard deviation of 218kw. Find…

A: Given information- Population mean, μ = 1050 kw Population standard deviation, σ = 218 kw We have to…

Q: The weights of college football players are normally distributed with a mean of 193 pounds and a…

A: Mean = 193 Standard deviation = 53

Q: The manufacturer of cans of salmon that are supposed to have a net weight of 6 ounces tells you that…

A: GivenMean(μ)=6.04standard deviation(σ)=0.21Sample size(n)=33

Question

100%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

The average credit card debt for college seniors is $3262. If the debt is normally distributed with a standard deviation of $1100. Find the probability that the senior owes between $3000 and $4000 (round to 4 decimal places)
In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test had a mean score of 230 with a standard deviation of 23. Assume the scores are normally distributed. Find the probability that a student had a score higher than 280.
The average score of all golfers for a particular course has a mean of 64 and a standard deviation of 5. Suppose 100 golfers played the course today. Find the probability that the average score of the 100 golfers exceeded 65. Round to four decimal places.
PLEASE PROVIDE SOLUTION ASAP AND SELECT CORRECT OPTION FOR EACH
Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard deviation o= 15. Find the probability that a randomly selected adult has an IQ less than 130. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ less than 130 is (Type an integer or decimal rounded to four decimal places as needed.)
Assume that women's weights are normally distributed with a mean given by mean=143 lb and a standard deviation given by 29 lb. If 3 women are randomly selected, find the probability that they have a mean weight below 113 If 85 women are randomly selected, find the probability that they have a mean weight below 113
Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a standard deviation o = 20. Find the probability that a randomly selected adult has an IQ between 83 and 117. Click to view page 1 of the table Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 83 and 117 is (Type an integer or decimal rounded to four decimal places as needed.)
The life of light bulbs is distributed normally. The mean life time of a bulb is 520 hours and the standard deviation of the life time is 24 hours. Find the probability of a bulb lasting for at least 620 hours? (Round your final answer to 4 decimals)
A student scores 80 in math which has a mean of 70 and standard deviation of 10. He also scores 85 in English which has a mean of 85 and standard deviation of 5. Find and interpret his Z scores to let him know which exam, if any, he performed better in.
Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a standard deviation o=15. Find the probability that a randomly selected adult has an IQ between 82 and 118. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 82 and 118 is (Type an integer or decimal rounded to four decimal places as needed.)
Assume that the readings on the thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A thermometer is randomly selected and tested. Find the probability that the reading is between -1.12°C and 1.37°C.
Solve the problem.Assume that mountain lions' weights are normally distributed with a mean of 62.6 kilograms and a standard deviation of 2.6 kilograms. If 70 mountain lions are randomly selected, find the probability that they have a mean weight between 61.9 kilograms and 62.8 pounds.