Assume that adults have IQ scores that are normally distributed with a mean of 105 and a standard deviation 15. Find P,, which is the IQ score separating the bottom 2% from the top 98%. Click to view page 1 of the table. Click to view page 2 of the table. The IQ score that separates the bottom 2% from the top 98% is P, =. (Round to the nearest hundredth as needed.)

Q: If these data are converted to deviation scores, the last value (15) would have a value of Y 2 9 11…

A: Solution: The mean of Y is

Q: Assume that scores on a trivia challenge test were distributed normally, with an average score of 70…

A: Given data, μ=70σ=6

Q: In a college class, the average IQ is 115. Assume that the distribution is normal and that the…

A: In a college class, the average IQ is 115. Assume that the distribution is normal and that the…

Q: On a nationwide math test, the mean was 75 and the standard deviation was 7. If Roberto scored 70,…

A: The z score indicates how many standard deviations that a data points away from the mean. It can be…

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Q: The average high temperature for Atlanta in January is 53 degrees with a standard deviation of 8.2…

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Q: On a nationwide math test, the mean was 57 and the standard deviation was 10. If Roberto scored 80,…

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Q: If in a data set the observation 78 has z-score equal -0.60 and the observation 88 has z- score…

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Q: A successful basketball player has a height of 6 feet 2 ​inches, or 188 cm. Based on statistics from…

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Q: A sample of the number of sick days used by employees at a clinic is as indicated: 0,    0,    1,…

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Q: On a nationwide math test, the mean was 63 and the standard deviation was 10. If Roberto scored 85,…

A: GivenMean(μ)=63standard deviation(σ)=10score(x)=85

Q: Given the figure above is a normal curve, with a mean score of 100 and a standard deviation of 15, a…

A: Given that ; Mean (μ) = 100 ? = 15  The given curve follows standard normal distribution by using…

Q: Suppose that your class took a test and the mean score was 86% and the standard deviation was 4%.If…

A: It is given that the mean is 86 and standard deviation is 4.

Q: On a spelling test, the standard deviation is equal to 0.94. What does this mean

A: We know that the Standard deviation tells us that how much data is scattered around the mean value…

Q: John wishes to estimate the population mean salary of college graduates who took a statistics course…

A: Solution: Note: Hello! As you have posted 2 different questions, we are answering the first question…

Q: Sean receives a 65% on his math test assume that the average grade on the test for his class is 44%…

A: Given: Score of Sean = x = 65 Population mean of the grade of the test= μ = 44 Standard deviation of…

Q: Suppose you were told you scored two standard deviation below the mean on a measure where the main…

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Q: The mean grade of adrian in the final examination in mathematics was 85 and the standard deviation…

A: The mean of a dataset is computed by μ=∑xn, where ∑x is sum of observations and n is the total…

Q: You want to know the percentage of utility companies that earned revenue less than 39 million or…

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: Topic- Probability

Q: Given the data 18, 23, 26, 29, find the standard deviation to two decimal places answer rounded to…

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Q: In a Science test, the mean score is 42 and the standard deviation is 5. Assuming the scores are…

A: Given: The mean score of a Science test is μ=42. The standard deviation is σ=5. Let X be a random…

Q: Find the standard deviation for the group of data items. Stems Leaves 3 4 16 16 The standard…

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Q: (c) If the standard deviation remains at 0.5 ounce, what must the mean weight be for the company to…

A: Givenstandard deviation(σ)=0.5x=13 ounces

Q: The scores on a driver's test are normally distributed with a mean of 100. Find the score that is 3…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 28 X~N (100, 28)

Q: Tanya takes her Physics test and is told that her Z-score is 3.10. If the class mean was 75 and the…

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Q: Assume the test scores in your class are normally distributed with a mean of 84. You scored a 96,…

A: Given: mean = 84.

Q: Suppose you scored 83, 77, 72, and 82 O on your four exams in a mathematics course. Calculate the…

A: The given scores are 83, 77, 72, and 82.We need to find the range and standard deviation of the…

Q: Many students did an exam, the mean was 15 and the standard deviation was 32 The highest mark was…

A: Given Mean μ=15, standard deviation σ=32  X=103

Q: On a verbal skill test, the mean was 72 and the standard deviation was 7. If John scored 75, what…

A: Given data,Mean μ=72sd      σ=7If John scored 75z-score=?

Q: Assume that the SAT test scores are normally distributed with a mean score of 1200 and a…

A:

Q: John wishes to estimate the population standard deviation of salary of college graduates who took a…

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Q: What percentage of the widget Weights lie between 55 and 79 ounces when the mean is 61 and the…

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Q: It is given that a vending machine dispenses a mean of 7.6 ounces with a standard deviation of 0.4…

A: Given: Mean = 7.6  Standard deviation =  0.4 oz

Q: The mean grade in the Physics examination was 73 and the standard deviation was 8. Determine the…

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Q: The mean grade of in the final examination in Mathematics was 85 and the standard deviation was 7.…

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Q: Suppose the scores on a college entrance examination are normally distributed with a mean of 525 and…

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Q: A person in the U.S. eats about 25 pounds of M&M's per year with a standard deviation of 3 pounds.…

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Q: Suppose you have already calculated the mean, the average deviation, and the standard deviation of…

A: (a) Condition for Average Deviation: If the value of the observation is increased or decreased by a…

Q: The average on the Math section of the SAT was 500 with a standard deviation of 100. What score must…

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Q: The mean IQ score for 1800 students is 90, with a standard deviation of 10. Assuming the scores have…

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Q: The time is takes a studen to walk from the dorn to the chemistry lab follows roughly a Normal…

A: Mean(µ) = 20 Standard deviations (σ) = 3 X ~ N (µ, σ )= N ( 20, 3)

Q: THE SCORES ON A SCIENCE TEST HAD AN AVERAGE OF 78 AND A STANDARD DEVIATION OF 3. WHAT PERCENT OF…

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Q: In a given school year, the ACT test mean score was 21 with a standard deviation of 4.9. The same…

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Q: On a standardized test, Jose scored an 87 and Mia scored a 74. The distribution of test scores for…

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Q: Suppose the main percentage in algebra is 70% and the standard deviation is 8% What percentage of…

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Q: What are all the values that standard deviation "s" can possibly take?

A: Standard deviation S=x1;x2n-1and ,Standard deviation is the positive squarew root of the variance…