THE SCORES ON THE SAT MATH HAD A MEAN OF 431 AND A STANDARD DEVIATION OF 117. What percent of students scored between a 314 and 548?
Q: Would a person spending $476 on their car be considered usual or unusual if the amount spent by the…
A: Given information- Population mean µ = $347 Population standard deviation, σ = $39.58 Let, X be the…
Q: Yoonie is a personnel manager in a large corporation. Each month she must review the employees in…
A: Solution: It is given that from the past experience of Yoonie, it takes her approximately four hours…
Q: IQ scores have a mean of 100 and a standard deviation of 15. What percentile corresponds to an IQ…
A: Given that Mean =100 Standard deviation =15 We have to the percentile corresponding to an IQ…
Q: Keenan scored 80 points on an exam that had a mean score of 77 points and a standard deviation of…
A:
Q: A state administered standardized reading is given to eighth grade students. The scores for all…
A: Mean(μ)=517 Standard deviation(σ)=63
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: statistics professor reported that the mean score in a recent quiz is 72 and the standard deviation…
A: Solution
Q: A test has a mean of 140 and a standard deviation of 27. What proportion of people have scores…
A:
Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…
A: From the given information, Mean = 3.6 Standard deviation = 0.3 The objective is to find the…
Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…
A:
Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…
A:
Q: The final grades in a math class has a mean of 77 and a standard deviation of 9.77 if the professor…
A: Here we need to find the cutoff for A grade. Given that the top 10% are given A. We assume that the…
Q: The mean of a test score was 21.2 and the standard deviation was 5.1 . Identify the rest scores that…
A: Given Data Mean µ= 21.2. Standard Deviation σ= 5.1. Assuming that the given data is obtained from a…
Q: on a national achievement test score was 850 with a standard deviation of 100. what proportion of…
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: A line for tickets to a broadway show had a mean waiting time of 20 minutes with a statistic…
A: Given: Mean, μ=20 Standard deviation, σ=5 Sample size, n= 200 Use normal approximation here, the…
Q: In a study of Ridge View's boys' basketball team, the average height is 68 inches and standard…
A: Given, mean =μ=68Standard deviation = 4x = 78
Q: The golf scores for a school team were normally distributed with a mean of 68 and a standard…
A: Let X be the golf scores. It is given that X is normally distributed with mean 68 and standard…
Q: ... Since the z score for the tallest man is z = and the z score for the shortest man is z = | , the…
A: The tallest living man at one time had a height of 238 cm. The shortest living man at that time had…
Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…
A: Given that, Mean = 72 Standard deviation = 7
Q: Find the deviations from the mean for the set of data: 26, 29, 22, 24, 24. Score 26 29 22 24 24…
A: Given Data is, 26,29,22,24,24 mean,x¯ =26+29+22+24+245=25
Q: For a social club, the members had a mean age of 68 and a standard deviation of 10 years. What is…
A: The mean is 68 and the standard deviation is 10.
Q: H=34, o=4.5, the score is 2.5 standard deviations above the mean
A: Suppose the variable of interest is x.The mean is and the standard deviation is .
Q: Use z scores to compare the given values. The tallest living man at one time had a height of 225…
A: Given that The tallest living man at one time had a height of 225 cm. The shortest living man at…
Q: A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. What…
A: Given Information: Mean (u) = 75 Standard Deviation (s) = 8 To find: Exam scores that separates…
Q: The tallest living man at one time had a height of 246 cm. The shortest living man at that time had…
A: The provided information is µ=170.86 cmσ=8.41 cmThe z score for tallest living man at one time time…
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: The weekly revenue earned by a certain restaurant has a mean of $118,500 and a standard deviation of…
A: GivenMean(μ)=118500standard deviation(σ)=16800
Q: A sandwich shop claims to sell sub sandwiches that are 12 inches lona. An employee is a little…
A: We have given information, μ=12 inches n=45 x¯=12 inches s= 18 inches
Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…
A:
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- On a verbal skill test, the mean was 72 and the standard deviation was 7. If John scored 75, what was his z-score?You are provided with a mean of 28.18 with a standard deviation of 4.33. What percent of students had a score between the mean and 26.25?According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the standard deviation is 3 inches. If Zsike is 67 inches tall, what is her z-score?
- Carla scored a 31 on her ACT and an 750 on her SAT. If the mean and standard deviation for the ACT are 18 and 7, respectively; and the mean and standard deviation of the SAT are 500 and 150, respectively - what is her percentile rank on each exam? Percentile rank of ACT Percentile rank of SAT On which exam did she do better?2) After doubling all of the scores, the mean was found to be 28 and the standard deviation was 4. What were the values for the mean and SD before the change? ExplainUse z scores to compare the given values. The tallest living man at one time had a height of 243 cm. The shortest living man at that time had a height of 125.9 cm. Heights of men at that time had a mean of 173.68 cm and a standard deviation of 7.46 cm. Which of these two men had the height that was more extreme? Since the z score for the tallest man is z=nothing and the z score for the shortest man is z=nothing, the ▼ shortest tallest man had the height that was more extreme.
- Jared has a mean of 74 on his quizzes, with a standard deviation of 7. On his most recent quiz, he scored a 65. Is this unusual compared to how he usually performs on quizzes?A standardized test has a pop. mean of 152 and a standard deviation of 16. Jenny has a score of 143. What is her z score and what percentage of students scored lower than her?The mean height of Americans in 1776 was 67 inches with a standard deviation of 3 inches. George Washington is believed to have been 6 ft 2 inches tall, or 74 inches. Between what two heights (in inches) do 68% of the heights fall? a.61 to 70 b.61 to 73 c.64 to 70
- The heights of 82 roller coasters have a mean of 280.7 feet and a population standard deviation of 59.3 feet. Find the standardized tests statistics and the corresponding p-value when the claim is that roller coasters are less than 290 feet tall.2. On the final exam, your friend scored a 93 and you scored a 85. The scores are normally distributed with a mean of 90 and a standard deviation of 10. What percentage of students scored between you and your friend?Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?