IQ scores of adults are normally distributed with a mean of 100 and a standard deviation of 12. What would be the probability of randomly selecting an adult who had an IQ score higher than 127?

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

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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: Mean = 71kg, standard deviation = 13kg. if 46 adults are randomly selected, what is the probability…

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Q: IQ scores are known to be normally distributed with a mean of 100 and a standard deviation of 15.…

A: GivenMean(μ)=100standard deviation(σ)=15sample size(n)=100

Q: Scores on the Critical Reading part of the SAT exam in a recent year were roughly Normal with mean…

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Q: The net weight of a can of salmon is a random variable with a mean of 6.07 ounces and a standard…

A:

Q: Glucose levels in patients free of diabetes are assumed to follow a normal distribution with a mean…

A: Given , Mean ( μ ) = 111 standard deviation (σ)  = 10.

Q: Furnace repair bills are normally distributed with a mean of 263 dollars and a standard deviation of…

A: Here, µ = 263 and σ = 25.

Q: Heights of women are normally distributed with a mean of 62.1 inches and a standard deviation of 2.3…

A: 0.79562Explanation:The required probability is P(X<64) where X denotes the height of a woman.For…

Q: The golf scores for a school team were normally distributed with a mean of 72 and a standard…

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: the time it takes a student to complete the statistics exam follows a normal distribution with a…

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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: On the final exam in a large statistics class the average score was 76 with a standard deviation of…

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Q: The average score of all golfers for a particular course has a mean of 75 and a standard deviation…

A: Let is denote X=the score of a golfern=sample size=81X has mean=75 and standard deviation=4.5So, X¯…

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

A: Given that : Mean =100 Standard Deviation =15 We have to find the probability a random person has an…

Q: The Wechsler IQ test is normally distributed with mean 100 points and standard deviation 15 points.…

A: Solution let Xdenote Wechsler IQ test is normally distributed with mean 100 points and standard…

Q: Body temperatures of adults are normally distributed with a mean of 98.60 Fahrenheit and a standard…

A: The Z-value of a random variable X is defined as follows: Here, the mean and standard deviation of…

Q: The average age of accountants is 43 years, with a standard deviation of 5 years. If an accounting…

A: From the given information,   Mean = 43 Standard deviation = 5 Sample size = 30

Q: The average GPA scored by a class is 4.91 and standard deviation is 0.72. For a sample of 30…

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Q: The sizes of houses in Kenton County are normally distributed with a mean of 1369 square feet with a…

A: From the given information, the mean and standard deviation are 1,369 and 171.

Q: A recent study found that 69% of all adults over 50 wear sunglasses for driving. In a random sample…

A: Formula : Mean = np Standard Deviation  :

Q: Scores on the SAT test have a mean of 1518 and a standard deviation of 325. If 100 students are…

A: Scores on the SAT test have a mean of 1518 and a standard deviation of 325.

Q: find the probability that the mean time of a sample of 15 Americans who shower will be less than 12…

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Q: The average MATH SAT score is 513 with a standard deviation of 119. random sample of 60 students…

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Q: The heights of students are normally distributed with mean 161 inches and standard deviation of 4.56…

A: Answer: From the given data, Let X: heights of students X is normally distributed with Mean (μ) =…

Q: A z-score of +1.6 represents a value which is how many standard deviations above the mean?

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

A: As given the IQ scores of adults are normally distributed with a mean ( µ ) = 100 and standard…

Q: bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of…

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Q: A researcher measures the amount of sugar in several cans of the same soda. The mean is 39.01 with a…

A:

Q: A simple random sample of 36 observations was taken from a large population. The sample mean and the…

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Q: MCAT scores are normally distributed with a mean of ? ​​= 501.5 and a standard deviation of ? =…

A: Given: Population mean μ = 501.5 Population standard deviation σ = 10.7 Formula Used: Z-score = X-μσ

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

A: Let X denote the IQ scores and it follows normal distribution That is, X follows N(μ=100,σ=15) The…

Q: Furnace repair bills are normally distributed with a mean of 267 dollars and a standard deviation of…

A: Let us denote: X=Furnace repair billsGiven that X follows a normal distribution with mean=267 and…

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

A: Given Data: Let X represent the random variable Mean=80 SD=7   n=49 M~ Normal(80,7249)

Q: Based on data from the National Health Board, weights of men are normally distributed with a mean of…

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Q: IQ scores are normally distributed with a mean of 100 and standard devation of 15. find the…

A: Let us consider, IQ scores are denoted by X which are normally distributed with a mean of 100 and…

Q: The distribution of raw scores on a chemistry final is approximately normal with a mean of about 60…

A: A z-score represents the position of a data point in terms of its distance from the mean when…

Q: It is possible to score higher than 1600 on the SAT, but scores 1600 and above are reported as 1600.…

A: Obtain the Z-score for the random variable X equals 1600. The Z-score for the random variable X…

Q: a distribution with a mean of 100 and a standard deviation of 15, what is the probability that a…

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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.