he combined SAT scores for the students at a local high school are normally distributed with a mean of 1535 and a standard deviation of 292. The local college includes a minimum score of 2469 in its admission requirements. What percentage of students from this school earn scores that fail to satisfy the admission requ

Q: Assume that the amount of time people can hold their breath is normally distributed with a mean of…

A: Since, you have asked multiple question, we will solve the first question for you. If you want any…

Q: an exam score has a mean of 506 and a standard deviation of 100. What exam score corresponds to a…

A: μ  = 506 , σ = 100  Z~ N(0,1)

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 scores on a test have a mean of 100 and a standard deviation of 15.  If a personnel manager…

A: given data, assume the variable is normally distributed.μ=100σ=15If a personnel manager wishes to…

Q: A standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was…

A: Let X be a random variable following normal distribution with mean μ and variance σ2, i.e.,…

Q: The SAT scores (X) of the students in the U.S. in 2011 are normally distributed with a mean 1500 and…

A: X~N(1500, 200)

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

A: Solution: Let X be the adults IQ score has normally distributed with mean μ=100 and standard…

Q: The salaries of a company's employees are normally distributed with mean 15000 and standard…

A:

Q: A teacher says that the top 9​% of the class received an A on the last test. The scores were…

A: Given that the mean is 67 and the standard deviation is 18. That is, μ=67, σ=18 A teacher says that…

Q: For 261 female heights, the mean was 66.4 inches and the standard deviation was 2.6 inches. The…

A: Given,Mean = 66.4 inchesStandard deviation (SD) = 2.6The shortest person in this sample had a height…

Q: An educational study to be conducted requires a test score in the middle 40% range. If the mean is…

A: Let us assume X=score Given that X follows a normal distribution with mean= 100 and standard…

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: if a student scored 88 points on a test when the mean score was 80.2 and the standard deviation was…

A: From the provided information, Mean (µ) = 80.2 Standard deviation (σ) = 5.7

Q: The results of a common standardized test used in psychology research is designed so that the…

A:

Q: scores are normally distributed with mean 500 and standard deviation 100. Julie scores 650. Her…

A: Consider X be the random variable representing the SAT scores. X follows normal distribution with…

Q: Researchers measured the waist sizes of 230 men in a study on body fat. The true mean and standard…

A: Suppose researchers measured the waist sizes of  men in a study on body fat. The true mean:…

Q: The average score of all golfers for a particular course has a mean of 76 and a standard deviation…

A: We have given information with the usual notation, Let X denote the score of golfers for a…

Q: The results of a common standardized test used in psychology research is designed so that the…

A: Suppose that the random variable x defines the scores in psychology research.

Q: A large number of applicants for admission to graduate for study in businesss are given an aptitude…

A: Let X denote the aptitude test scores and it follows normal distribution with mean of μ=400 and…

Q: Use Chebyshev's Theorem to find what percent of the values will fall between 120 and 150 for a data…

A: The percentage of observations that are within k std dev. of the mean is 100(1-1k2)%

Q: The SAT scores (X) of the students in the U.S. in 2011 are normally distributed with a mean 1500 and…

A: The objective of this question is to find the percentage of students who scored below Darth Vader on…

Q: amount of honey produced by local beekeepers is normally distributed with a mean of 140 pounds and a…

A: given data, normal distribution mean=140standard deviation=31smallest amount in the top 14% produced…

Q: The mean score in a test is normally distributed with mean 30 and standard deviation 10. What is…

A: Given :  Mean, μ = 30 standard deviation, σ = 10 x = 55

Q: The distribution of SAT scores is normal with a mean of 550 and a standard deviation of 120. What…

A: The distribution of SAT scores is normal with a mean of 550 and a standard deviation of 120. What…

Q: Liz has applied to a college that requires students to score in the top 6.7% on the Mathematics…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: A standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was…

A:

Q: When Christian runs the 400 meter dash, his finishing times are normally distributed with a mean of…

A:

Q: In the year 2013, the average SAT mathematic was 513. Suppose that these scores were normally…

A: Here, mean is 513 and standard deviation is 80. We will use z-standard normal distribution to find…

Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A: Solution: Let X be the score. From the given information, X follows normal distribution with mean…

Q: The Psych 230 students finished the course with a total population mean of 130 points and the…

A:

Q: Solar earned a score of 940 on a national achievement test. The mean test score was 850 wth a…

A: Given that  Solar earned a score of 940. The test scores are normally distributed. Mean test score…

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

A: Given that mean=15 and standard deviation = 2 Let, X= number of hours spent by a student in the…

Q: The mean of a data ser is 70. The standard deviation is 2. Between what Value is 95% of data found…

A:

Q: Assume that an intelligence test scores are distributed normallt with a mean of 100 and a standard…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: A set of data item is normally distributed with a mean 218 and a standard deviation of 49. Find the…

A:

Q: Each year students in a local school district write a national examination. The average on this…

A: Given data Mean = 150 Standard deviation=20

Q: ou are a teacher at a gifted school, and you feel that the newest class of students is even brighter…

A: From the provided information, Population mean (µ) = 127 Sample size (n) = 32 Sample mean (x̅) = 134…

Q: A standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was…

A: We have, X= A standardized​ exam's scores the mean test score was 1549 and the standard deviation…

Q: The speed of cars driving past Johnson City High School, on 666 Reynolds Rd, were recorded over one…

A: In this intriguing analysis centered around traffic speeds near Johnson City High School, the…

Q: Entry to a certain University is determined by a national test. The scores on this test are normally…

A:

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

A: Introduction: If P4 denotes the 4th percentile, then observations lie below P4 with 4% or 0.04…

Q: standardized test has a pop. mean of 152 and a standard deviation of 16. What would be the median…

A: Given that Mean=M=152, Standard Deviation=Sd=16 X~N(M=152,Sd=16)