SAT scores have a mean of 1000 and a standard deviation of 100. ACT scores have a mean of 20 and a standard deviation of 5. A student takes both tests and scores 1130 on the SAT and 28 on the ACT. Compare the scores. = 2

Q: The average exam score of a physics class is 75 points with a standard deviation of 3 points. Peter…

A: Given information Mean µ= 75 Standard deviation σ = 3 Peter’s score x = 72

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: Given : Sample size, n = 50 Here the sample size is greater than 30 , the data can be approximated…

Q: The mean height of a basketball team is 6.5 feet with a standard deviation of 0.2 feet. The team's…

A: Given,

Q: A distribution of exam scores has a mean of μ = 42. If your score is X = 46, which standard…

A: we have to find which sd will give better score.

Q: The mean is 65 The Standard Deviation is 10 30 Students What score would be necessary to obtain…

A: From the given information, The Score of the student are normally distributed. Mean =μ=85 Standard…

Q: Round each z-score to the nearest hundredth. A data set has a mean of x = 218 and a standard…

A: Given , x = 218    , σ = 40 We know , z-score = x-xσ

Q: Yearling Angus steers had a mean weight of 1152 pounds with a standard deviation of 84 pounds.…

A:

Q: collected data on the cost of computers at best buy shows that 95% of the prices are between what…

A: The two values of cost of computers at best buy in which about 95% of the prices are is obtained as…

Q: A successful basketball player height is 203 cm. His converts to the z score of 4.10. How many…

A: Consider, X = 203  z-score = 4.10 z-score is a numerical value that tells the number of standard…

Q: The mean IQ is 100 points with a standard deviation of 15 points. 4) What percent of the population…

A:

Q: Find the standard deviation for the group of data items. Stems Leaves 8 1 58 2 58 The standard…

A: Given data : From the above stems and leaves data 8,15, 18, 25, 28 x¯ = ∑xin x¯ = 8+15+18+25+285 x¯…

Q: The speed limit of a road is 65 miles per hour. The speed of a car on the highway follows a normal…

A: Note: Hi there! Thank you for posting the question. Unfortunately some portion of the question seems…

Q: Time in surgery: Records at a hospital show that a certain surgical procedure takes an average of…

A: (1) Let X be the random variable from Normal distribution with mean (μ) = 172.6 and standard…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of​ adults, and those scores…

A: Solution given that  X is normal distribution with μ=100  ,σ = 15

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Let "x" be the IQ score of adults Find z-value: Since the total area under the normal curve is 1.…

Q: A distribution of exam scores as a mean of µ=42. a. If your score is X=46, which standard deviation…

A: Solution: From the given information, µ=42.

Q: Assume scores on an exam are normally distributed with a mean of 80 and a standard deviation of 5.…

A: It is given the mean and standard deviation are 80 and 5, respectively.

Q: Q2. A population has a mean of μ= 30 and a standard deviation of σ= 5.  If every score in the…

A: Given,

Q: *. The mean IQ is 100 points with a standard deviation of 15 points. a) What percent of the…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15 X~N (100, 15) Here X is…

Q: A distribution has a mean of 30 and a standard deviation of 5. Approximately 68% of the distribution…

A: according to the Empirical rule .

Q: On an exam with a mean of µ = 70, a person scores X = 60. Which of the following values for the…

A: Given ,         Mean μ=70and a person score X=60If σ=2 , μ=70 , x=60 then the z-scoreis z-score…

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: GivenHighest speed measured (x)=78.4Mean(x)=18.37standard deviation(s)36.54

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A:

Q: and symmetric with a mean of 160 pounds and a standard deviation of 30 pounds. What percent of the…

A:

Q: A normal distribution of test scores has a mean of 38 and a standard deviation of 6. What percent of…

A: The distribution of X is given as, X~N(µ=38, σ=6).

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of​ adults, and those scores…

A: The value of z corresponding to the area 60%, i.e., p = 0.60 is  0.25, which can be obtained by…

Q: A recent survey revealed that an American's Christmas spending averaged $1,150. Suppose Americans'…

A: Given that, μ=$1150,σ=$310 Consider that 5% of Americans will spend more than this dollar amount on…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A:

Q: A successful basket ball player has a height of 6 feet 4 inches. Based on statistics his height…

A: As given, The basketball player has a height of 6 feet 4 inches and when his height is converted to…

Q: A data set of employee salaries has an average of $60,000 with a standard deviation of $5,000. You…

A: Given that, Mean = $60000 Standard deviation = $5000

Q: The mean composite score for seniors who took the SAT in 2010 was 1068. If the standard deviation…

A: From the provided information, Mean (µ) = 1068 Standard deviation (σ) = 100

Q: Grace has a dog and its weight is z = -0.5lbs.  Her current weight is 47 lbs.  The average weight…

A:

Q: We know that IQ scores are normally distributed with a mean of 100 and a standard deviation of 15.…

A:

Q: Pearson publishes textbooks each semester and the mean number of textbook pages published by Pearson…

A: Given data,μ=568σ=150P(X>733)=?

Q: which has a mean of 350 and a standard deviation of 50. His brother Kyle takes the Regional…

A: Given for Nathan Population mean μ=350, standard deviation=50  For Kyle Population mean μ=300,…

Q: The scores on a mathematics exam have a mean of 65 and a standard deviation of 7. Find the x-value…

A: From the given information,   Mean = 65 Standard deviation = 7   And, z =-2.575

Q: Use the display of data to find the standard deviation (do not round until the final answer, then…

A:

Q: percentile rank on each exam? Percentile rank of ACT  Percentile rank of SAT  On which exam did…

A: The mean and standard deviation for the ACT are 18 and 7. Carla scored 31 on her ACT. The value of…

Q: Time in surgery: Records at a hospital show that a certain surgical procedure takes an average of…

A:

Q: The heights of women are normally distributed with a mean of 65 inches and a standard deviation of…

A: From the provided information, Mean (µ) = 65 inches Standard deviation (σ) = 2.5 inches Let X be a…

Q: The mean SAT score for 13 male highschool students is 500 and the standard deviation is 100. the…

A: Let us denote the group of males as 1st sample and group of females as 2nd sample. Hypotheses for…

Q: Women’s heights have a mean of 63.6 inches and a standard deviation of 2.5 inches. Men’s heights…

A: It is given that the women’s heights have a mean of 63.6 inches and a standard deviation of 2.5…

Q: In a recent study, the serum cholesterol levels in men were found to be normally distributed with a…

A: Here, mean is 196.7 and standard deviation is 39.1.

Q: Round each z-score to the nearest hundredth. A data set has a mean of x = 4074 and a standard…

A: As per Bartleby guideline for more than one question asked only first is to be answered  and please…

Q: The quantitative subtest of the Graduate Record Exam (GRE) has a mean of 500 and a standard…

A:

Q: ind the z-score for the value 89, when the mean is 55 and the standard deviation is 4. A 7-8 25

A:

Q: what is the z score for a person who received an SAT mathematics score of 685?

A: Here Given, The mean mathematics score for seniors who took the SAT in 2018 was 531. If the standard…

Q: The lengths of pregnancies are normally distributed with a mean of 276 days and a standard deviation…

A:

Q: ACT scores are roughly Normal with mean 20.8 and standard deviation 4.8, and SAT scores are roughly…

A: Given information: The mean and standard deviation of ACT scores are 20.8 and 4.8. The mean and…