After an exhaustive university-wide student survey, it was found that the IQ scores of Brac University students follow a normal distribution with mean 95 and standard deviation 20 a. What is the probability that a randomly selected student will have an IQ score greater than 110? Answer in exact fraction, or rounded to at least 4 decimal places. b. What is the probability that a randomly selected student will have an IQ score between 85 and 107? Answer in exact fraction, or rounded to at least 4 decimal places. c. Faisal claims that his IQ score is better than 65.14% of all BracU students. What is the minimum IQ score Faisal should have for his claim to be valid?? Answer in exact fraction, or rounded to at least 2 decimal places.

Q: help please answer in text form with proper workings and explanation for each and every part and…

A: Adventure Rafting, a company that runs rafting trips on the Colorado River, has eight rafts in its…

Q: calculate the mean and standard deviation of the sample data, round each answer to at least two…

A: Given data,92, 91, 82, 96, 68, 68, 93, 44, 67, 38

Q: What

A: Explanation and solutions is given below....

Q: CNNBC recently reported that the mean annual cost of auto insurance is $962. Assume the standard…

A: Given information: The mean annual cost of auto insurance is $962. The standard deviation is $190.…

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9, 4, 7, 1, 4.

A: Considering the scores as population. The population mean is, μ=∑XN=9+4+7+1+45=255=5 Thus, the…

Q: Calculate the mean, median and standard deviation of these six numbers: 4, 2, 8, 3, 12, 9

A: Given,4, 2, 8, 3, 12, 9sample size(n)=6

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9,4,7,1,4.

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: The sample of five companies in the aerospace industry was surveyed as to their return on investment…

A: We have to find sample variance s2  and sample standard deviation...

Q: Find the sample standard deviation. The top five scores on last semesters midterms were 90 97 100 90…

A: The question is about measures Given : Data - 90, 97, 100, 90, 93   To find : Sample std. deviation

Q: A randomly selected list of everyday food items was generated. Twenty-eight Grub Savers stores were…

A:

Q: Consider the following distribution of scores: 2,5,3,7,6,5. What is the mean?

A:

Q: Of the 500 people who took the civil servant acceptance test in one government agency, the average…

A: We have given that  Mean=67.5 Standard deviation=5.2  Find A) P(55.6<x<61)B) P(x>65)

Q: 500 freshmen at Arundel University took part in a math comprehension test. The scores were normally…

A: From the provided information, Population size (N) = 500 Mean (µ) = 75 Standard deviation (σ) = 7…

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: The highway mileage (mpg) for a sample of 8 different models of a car company is given as:19, 23,…

Q: Compute the standard error of the mean from the following scores; 45, 34, 65, 47, 15, 25 Round your…

A: Given data: scores; 45, 34, 65, 47, 15, 25 To find: standard error of the mean

Q: C. Find the probability that a randomly selected district had fewer than 1994 votes for President…

A:

Q: What is the Mean deviation of the numbers 0.5, 0.8, 1.1, 0.9 and 0.6

A: The data is given by 0.5, 0.8, 1.1, 0.9, 0.6 And the mean of these numbers is Mean = (0.5 + 0.8 +…

Q: The mean deviation of the data(1 * :2,9,9,3,6,9,4 from the mean is 2.23 3.23 O 2.57 O 3.57 O

A:

Q: What is the formula for calculating the standard deviation of a set of n observations?

A: Introduction The standard deviation is one of the measures of variability.

Q: The number of people standing in the line to vote at the last Presidential Election at 7:00 P.M. was…

A: In statistics, three measures of central tendency are widely used. These three measures are also…

Q: Calculate the mean, median and standard deviation of these five numbers: 7, 19, 5, 12, 3

A: Mean: For a set of n observations, x1, x2, ... , xn, mean is defined as,…

Q: 500 freshmen at Arundel University took part in a math comprehension test. The scores were normally…

A: From the provided information, Mean (µ) = 75 Standard deviation (σ) = 7 Let X be a random variable…

Q: A football coach claims that the average weight of all the opposing teams’ members is 210 pounds.…

A: Consider that μ is the true average weight of all the opposing teams’ members.

Q: Seven students on an intramural team weigh 179 ​lb, 177 ​lb, 174 ​lb, 185 ​lb, 167 ​lb, 186 lb and…

A: Given179,177,174,185,167,186,220sample size(n)=7

Q: Compute the standard error of the mean from the following scores; 45, 34, 65, 14, 15, 25 Round your…

A: Given data: 45, 34, 65, 14, 15, 25 n = 6 To calculate: Compute the standard error of the mean

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: normal distributionμ = 500σ = 100P(570<x<640) = ?

Q: absence of the three physical defects viz development defect denoted by A, nerve signs denoted by B…

A:

Q: The SAT Math scores have a bell-shaped distribution with a Mean of 567 and a Standard Deviation of…

A: We have given that,  Let the SAT scores are normally distributed with mean (mu) = 567 and standard…

Q: The Sum of Squared Errors for a data set of 18 numbers is 64. What is the standard deviation?

A: Given thatThe sum of squared errors of data set (SS) = 64Number of data values in data set (n) =…

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

Q: A researcher gathered data on five randomly selected individuals from a data set. The ages are 25,…

A: The data set of ages is25,27,20,21,29sample size(n)=5

Q: Find the mean, median, mode, range, variance and standard deviation.

A: Given data : [8,6,3,0,0,5,9,2,1,3,7,10,0,3,6]

Q: 1, the mean number of goldfish in the package is 187. find the probability of choosing a package…

A: Thanks for posting the question. Since multiple questions are posted, we will answer one question…

Q: use an ti84 device to solve.  The head of maintenance at XYZ Rent-A-Car believes that the mean…

A: Given: Mean μ=4959 Standard deviation σ=448 Sample size n=43

Q: Of the 200 American film enthusiasts, the average age is: 30 years, while the standard deviation is…

A: The normal distribution in the center is generally denser and basically less dense at tails. There…

Q: A group of customer service surveys were sent out at random. The scores were 40, 70, 80, 00, 50, 40,…

A:

Q: The latest available data showed health care spending were $8086 per person in the United States…

A: Givenpopulation mean = $8086population standard deviation = $2500sample size = 100Health care…

Q: According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the…

A: Given X is normal Distributed with mean µ = 65.0 and standard deviation σ = 3.0 Need to find Z score…

Q: Let X1, X2, ..., X, be a random sample from the population N(µz,0²) and Y1, Y2,...,Ym a random…

A: Given information: Given that X1, X2, … , Xn be a random sample from the population N(µx, σ2) and…

Q: From the states data set, get the descriptive statistics for the violent crime rate. For this…

A: given data

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Given data,Mean μ=247sd    σ=53

Q: If the mean speed for a major league fast ball is 90 miles per hour and the standard deviation is 5…

A: Given Information: Mean = 90  Standard deviation = 5 Standardized score for a pitch that is 97 miles…