- Find the 30th percentile. Find the 88th percentile. .What is the percentile rank for X = 77? What is the percentile rank for X = 90?

Q: Determine the percentile rank of the following. (Please make the answer CLEAR so that I can…

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Q: Determine the percent of data greater than z= - 2.20.

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Q: 25th percentile = 50th percentile = 75th percentile =

A: The data is already arranged in ascending order and the number of observation is 29.   The 25th…

Q: The chart below shows the grade distribution on a quiz in one of my classes. If there are 34…

A: Solution: The objective is to find the number of students who scored A grade

Q: _13. What is the 70th Percentile of the distribution?        a.95.2                       b. 93.4…

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Q: The median is a (choose the right alternative!): A) quartile b) percentile c) both a quartile and…

A: The second quartile, Q2, is the median. 50th percentile is the median.

Q: Complete the following statement. If you are asked to find the 85th percentile, you are being asked…

A: If you are asked to find the 85th percentile, you are being asked to find

Q: Percentile 40th percentile 2. 25th percentile 10 9oth percentile 95th percentile 97.5th percentile…

A: here use given percentile for t- value  percentile represent the area left of particular value

Q: Which of these would be considered a transformed score? a. percentile ranks and t scores b. z scores…

A: Transformed scores are those scores that have been converted from raw scores to meaningful score…

Q: How do you find the percentile?

A: Percentile :  A percentile is a term used in statistics to express how a score compares to other…

Q: Robyn Banks is an investor who acquired 100 shares of a company in year one at $10 and 50 shares of…

A: If the observations have unequal weightage then their mean value can be calculated by dividing the…

Q: The average number of red blood cells per cubic mm in humans is about 5 million. We'll let μ =…

A: Given: μ= 5000000           σ=500000 we need to find i) the values for the middle 80% people i.e…

Q: ntify the t-value of the percentiles of the following by filling up the table Student t-value 1.…

A: Given that, A researcher conducts a diagnostic examination to 20 students. The following are the…

Q: John calculated r -.44 for a set of n 10 pairs of values that represent the number of absences from…

A: Given that r = -0.44 midterm exam score ( y )   number of absences from class (x)

Q: t is the value of the mean?

A: What is the value of the mean?

Q: From the data below, a.the value of 60th percentiles P60 b.the value of the 95th percentile P95

A: Given,sample size(n)=50the given data is already arranged in ascending order.

Q: Using the scores, 69, 72, 73, 76, 77, 78, 81, 96, 98, 99 Show work and explain:   What percentile…

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Q: Jesse was ranked 36th in his graduating class of 180 students. At what percentile is Jesse's…

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Q: Risa is studying dating behavior in college students. She asks students as her school how many…

A: Risa is studying dating behavior in college students. She asks students as her school how many…

Q: When the outliers are removed how does the mean change?  A. The mean decreases by 2.75. B. The…

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Q: Kevin scored at the 60th percentile on a test given to 9920 students. How many students scored lower…

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Q: a value represents the 95th percentile, this means that

A: Here Percentile means the value equal to or below which the data points lies.  option A says that…

Q: The box plot represents the returns on a mutual fund over the past 10 years. (a) Which is…

A: Data visualization is the process of denoting the numerical data visually. Data visualization can be…

Q: (G) Boxplot for some data set is shown below, the percentage of the data that lies between 40 and 90…

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Q: .  374, 403, 690, 112 Which score, when added to this data set, would be in the 40th percentile of…

A: Let's say there is a class of n students and they all take a test, let's say the test was difficult…

Q: 9. Another term for the 75th percentile is the: A. lower quartile B. 50th percentile C. average D.…

A: 10. answer:A. skewed to the left. explanation:   When data are skewed left, the mean is smaller than…

Q: 22 Legacy boys and 19 Legacy girls play flag football. 30 Legacy boys and 32 Legacy girls…

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Q: How to find the percentile

A: Solution-: Describe how to find the percentile?

Q: Referring to the data, how many regions are above the 80th percentile of the nominal wage? A. 3…

A: Percentile : A k-th percentile in statistics is a score below which a certain percentage k of scores…

Q: Mrs. Paz gave a 20 point quiz to her Geometry class (10 students). The scores were:18, 15, 12, 6, 8,…

A: Given that  The data are 18,15,12,6,8,2,3,5,20,10

Q: Roxanne ranks 10th in a class of 40. Her percentile rank is

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Q: Approximately, what percent of the data is more than the third quartile? 25% 0% 50% 75%

A: what percent of the data is more than the third quartile

Q: d) Find interquartile of the data e) Find the 83rd and 70th percentile

A: Given: Age of trees, X 18 21 22 25 26 27 29 30 31 33 36 37 41 42…

Q: What is the value of the mean? P(X=x) 0.15 0.20 0.15 0.50 Answer: 3.

A: We want to find Mean

Q: z = -3 is what percentile? percentile

A: Given z=-3. The percentile is P(z<-3)

Q: Find the percentile rank for each test score in a data set 12, 28, 35, 42, 47, 49, 50. What value…

A: Given data, 12,28,35,42,47,49,50

Q: What percentile is Bronx county?   What county is at the 80th percentile?

A: Arrange the confirmed cases in ascending order for the given countries. U.S. Country Confirmed…

Q: Q3/ What is the test score corresponds to the 33rd percentile for the following data: 15, 12, 5, 16,…

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Q: Three hundred twenty students took a test where the scores are normally distributed. Paul's score…

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Q: d) Construct a box plot for the data. Do you detect any outliers? e) Find the 70th percentile for…

A: As per requirement (d) and (e) part. Given: Data 128 113 146 124 100 119 109 128…

Q: Find the closest z-score for the following percentages: The 85th percentile

A: From the provided information, The percentile is 85th.

Q: When finding percentile ranks for a percentile, the focus is always on identifying the percentile…

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Q: Q: The mean of 100 observations is 50. If one of the observations which was 50 is replaced by 150,…

A: Note: As per my policy i can answer only one question. kindly repost the another one. Given data The…

Q: g. Find the 68th percentile.

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Q: z = 3 is what percentile?

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Q: The data set below represents the ages of 36 executives. Find the percentile that corresponds to an…

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Q: z = 2 is what percentile? State your answer to the nearest tenth of a percent.

A: The pth percentile of a set of observations is the value below which, p% or (p/100) proportion of…

Q: Use the data to find the value that corresponds to the 40th {2,7,8,1,5,12,9,20,20,9,30,35}…

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Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.