Assume that adults have IQ scores that are normally distributed with a mean of μ=100 and a standard deviation σ=25. Find the probability that a randomly selected adult has an IQ between 90 and 110. The probability that a randomly selected adult has an IQ between 85 and 115 is

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96.8 and a standard…

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

Q: A group of data has a mean of 69 with a standard deviation of 5. What is the probability of finding…

A: Given the mean= 69 and standard deviation = 5 So, z score of 61 is:

Q: Find the probability that the sample mean is between 40 and 50. Sample size is 36 are drawn randomly…

A: From the provided information, Mean (µ) = 45 Standard deviation (σ) = 20 X~N (45, 20) Sample size…

Q: During a wisdom teeth removal procedure, 1, 2, 3, or 4 wisdom teeth are removed, depending on the…

A:

Q: Suppose that a category of world class runners are known to run a marathon (26 miles) in an average…

A: The random variable X is the average of the 49 races. The mean is 142, and standard deviation is 13.…

Q: me that a randomly selected subject is given a bone density test. Those test scores are normally…

A: test scores are normally distributed with a mean of 0 and a standard deviation of 1  find the…

Q: From 1776-1800, the average age of first marriage for a male in Western Europe was 26.4 years, with…

A: The question is about normal distributionGiven :Average age of first marriage for males ( ) = 26.4…

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

A:

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be…

A: Given Information: Mean μ=80 Standard deviation σ=7 Sample size n=49

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96.9 and a standard…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean 103.4 of and a standard…

A: IQ scores are normally distributed with a mean 103.4 and a standard deviation of 16.8.

Q: The scores on a mathematics exam have a mean of 71and a standard deviation of 8. Find the x-value…

A: Let X denote the scores on a mathematics exam and it follows normal distribution with mean of…

Q: Suppose that a category of world class runners are known to run a marathon (26 miles) in an average…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: he IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one…

A: Given that  Mean=100 SD=15 X = IQ of an individual. The probability that a randomly selected person…

Q: ssume that adults have IQ scores that are normally distributed with a mean of mu = 100 and a…

A: the probability that a randomly selected adult has an IQ between 87 and 113 = 0.6139

Q: Assume that the salaries of elementary school teachers are normally distributed with a mean $35,000…

A:

Q: Females have pulse rates that are normally distributed with a mean of 74 beats per minute and a…

A:

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the…

A:

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: Assume that adults have IQ scores that are normally distributed with a mean of 95.9 and a standard…

A: Given: Mean μ = 95.9 Standard deviation σ = 15.6 Formula Used: Z-score: Z = X-μσ

Q: Suppose a probability and statistics class took an exam that had a mean of 60 and a standard…

A: Given, E(X)=60 SD(X)=12   After 10 Point curve Let Y be new variable.

Q: Suppose that a category of world class runners are known to run a marathon (26 miles) in an average…

A: Given that μ=142σ=13n=49

Q: Peter collected data to find that the finishing times for cyclists in a race has a normal…

A: 68-95-99.7-rule: Let X be an observation from a normal distribution, having mean µ and standard…

Q: During a wisdom teeth removal procedure, 1, 2, 3, or 4 wisdom teeth are removed, depending on the…

A: We have given that,  mean (μ) = 3.90 and standard deviation (σ) = 0.88 and sample size (n) = 10

Q: A survey indicates that for each trip to the supermarket, a shopper spends an average of 45 minutes…

A: Given that, The lengthsnof time spent in the store are normally distributed and are represented by…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96 and a standard…

A: We have given that  Mean of 96 and a standard deviation 20.9. X~Normal(μ=96,σ=20.9)

Q: Assume that adults have IQ scores that are normally distributed with a mean of 103.6 and a standard…

A: Given that adults have IQ scores that are normally distributed with, Mean = 103.6 Standard deviation…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.5 and a standard…

A:

Q: suppose babies botn after a gestiation pwriod of 32 to 35 weeks have a mean weight of 2700 grams and…

A: The objective of this question is to calculate the z-scores for two babies with different gestation…

Q: The average score of all golfers for a particular course has a mean of 61 and a standard deviation…

A: Mean()=61Standard deviation()=4Sample size(n)=64

Q: During a wisdom teeth removal procedure, 1, 2, 3, or 4 wisdom teeth are removed, depending on the…

A: We have to find mean and sd.

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: Assume that an adult female is randomly selected. Suppose females have pulse rates that are normally…

A: Given: Formula: Let "X" be the female pulse rates in beats per minute.

Q: The United Nations stores statistics about all the live births in the United States. The latest data…

A:

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: If you pick 25 fruits at random, then 9% of the time, their mean weight will be greater than how…

A:

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0°and standard…

A: It is given that the mean is 0 and standard deviation is 1.

Q: The electric bills for all households in a large city have the normal distribution with a mean of…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.