A jar contains 11 red marbles, 12 blue marbles, and 6 white marbles. Four marbles from this jar are selected, with each marble being replaced after each selection. What is the standard deviation of X, the number of draws until the first red marble? O 0.4852 O 0.9704 2.0770 O 1.5172

Q: Given a set of data that is skewed-left, there is at least _____ % of the data within 3 standard…

A: From the given information, Consider, As it has been given that data is left skewed as a result one…

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: We have given that Mean(µ) = 221.1Standard deviations (σ) = 2X ~ N (µ, σ )= N(221.1, 2)

Q: Three students were applying to the same graduate school. They came from schools with different…

A:

Q: Seven students on an intramural team weigh 179 lb, 172 lb, 174 lb, 185 lb, 162 Ib, 181 Ib and 193…

A: According to the provided information, the sample weights are 179, 172, 174, 185, 162, 181, 193

Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

A:

Q: With a height of 64 in, Marvin was the shortest president of a particular club in the past century.…

A:

Q: A student takes an exam containing 3 true or false questions. If a student randomly guesses on the…

A: The provided information is as follows:The total number of true or false questions is

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A:

Q: The Transport Network Vehicle Service (TNVS) drivers have an average booking of 22 rides a day with…

A: Here we have given the information, using this information we have to find the standard error of the…

Q: A. Find the range. B. Find the standard deviation. C. Find the variance.

A: Given: Bar strength Number of bars, f 240-269 22 270-299 17 300-329 4 330-359 11…

Q: These are the heart rates of diabetic patients from a hospital: 81, 104, 116, 120, 111, 81, 116,…

A:

Q: There are four brothers in a family.  Their ages are 7 years,10 years,15 years, and 21 years.…

A:

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: The following are distances (in miles) traveled to the workplace by 6 employees: 13, 14, 9, 11, 3,…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Here, µ=0°C, σ=1.00°C.

Q: a. Which player had the higher average points when compared to the other players on his team?

A:

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: mean=145.2cm S.D=2.2cm

Q: About 10% of the population has a particular genetic mutation. 1000 people are randomly selected.…

A: Binomial distribution is a discrete distribution that deals with the probabilities of success and…

Q: A student takes a multiple-choice test that has 6 questions. Each question has four choices. student…

A: It is given that,  A student takes a multiple-choice test that has 6 questions i.e. n=6 Each…

Q: A data set lists weights (lb) of plastic discarded by households. The highest weight is 5.74 lb, the…

A:

Q: A sample of 9 shoppers at a supermarket is interviewed as they queue at the checkout. The number…

A:

Q: Researchers wanted to know if living in schools protects minnows from predators. The researchers…

A: Given information- We have given the data of the researchers placed different numbers of minnows…

Q: Below are the times ( in days) it takes for a sample of 6 customers from Ivan's computer store to…

A: Answer:- Given sample is, 21, 29, 36, 28, 40, 32Using formula,

Q: In A-1. The 8th hr. Probability was cut off. I would need that answer as well. In C. The mean and…

A: a-1. The probability distribution for the number of hours parked is, Hours Probability 1…

Q: 18 men will be tested for the discus throw. if Mu= 112ft and standard deviation= 13ft. find the…

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

Q: The table below shows the grades of the 20 students of a martial arts class. There are three grades:…

A: It is required to identify the most suitable measure of variability appropriate for the given…

Q: Smith works as a welder inspector in a shipyard. He knows from keeping track of good and poor welds…

A: Let p denote the propprtion of poor welds. Given that p = 5% = 0.05 Sample size n = 300

Q: and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested.…

A: Given: Assumption:  The readings at freezing on a bundle of thermometers are normally distributed…

Q: Compute the standard deviation of each of the two data sets A and B below. Then subtract the…

A: Given data is appropriate for measures of dispersion

Q: Twenty-five randomly selected students were asked the number of movies they watched the previous…

A: Given frequency distribution table is,# of movies (Xi)Frequency (fi)0519263441Using formulas,

Q: Ten novels were randomly selected, and the number of pages were recorded as follows: 415 398 402 399…

A: From the provided information, The data values are as follow: 415, 398, 402, 399, 400, 405, 395,…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A:

Q: Calculate the standard deviation of   2,3,3,3,9.

A: Given that  The data are 2,3,3,3,9

Q: Find the range, variance and standard deviation of the ff 10, 17, 15, 20, 13, 11, 19, 12, 14, 16…

A: Input the data : 10, 17, 15, 20, 13, 11, 19, 12, 14, 16  Range is the difference between the maximum…

Q: How many standard deviations is each student away from hiir school average? If the student GPA is…

A: It is given that For Thuy, mean = 2.4, SD = 0.5, X = 2.6 For Vichet, mean = 90, SD = 20, X = 83 For…

Q: Use z scores to compare the given values.   The tallest living man at one time had a height of…

A: From the provided information, Mean (µ) = 174.87 cm Standard deviation (σ) = 7.57 cm

Q: There are 225 dogs that participated at the National Dog Show that weigh an average of 5 kilos, with…

A: given data  n = 30 μ = 5σ = 3.5P(4<x¯<7) = ?