B 3.4 4.8 6.2 1.8 2 1.9 3.5 6.4 5.1 3.6 6.5 2.0 5.2 3.3 3.7 6.7 5.6 3.4 7.2 4.0 5.6

Q: The 95th percentile of 6-year-old boys' heights in the United States is 48.8 inches tall.  Explain…

A: Given: The 95th percentile of 6-year-old boys' heights in the United States is 48.8 inches tall.

Q: Part 2 x²0.025,15

A:

Q: compute for the 2nd quartile, 7th decile and 75th percentile

A: Given that  We have to find the 2nd quartile, 7th decile, 75th percentile :

Q: Find the attached file.

A: Given: 1125 2978 1172 1507 4776 3801 2015 2463 4388 135 3967 1674 1437…

Q: Question 2 Births are approximately Uniformly distributed between the 52 weeks of the year. They…

A: Let X be the variable of births between the 52 weeks of the year   Given: X~ Uniform(a, b) X~…

Q: Identify by name three important groups of percentiles.

A: In this case, we need to identify the three important groups of percentiles.

Q: Alex is 80th in his class of 320 students. What is his percentile rank in class?

A: Data given p=80, n=320

Q: Find the z-score that separates the largest 5% of scores from the rest.  Round your result to 3…

A: Obtain the z-score that separates the largest 5% of scores from the rest. The z-score that separates…

Q: Calculate the 30th percentile of the data shown

A: Data Set :12.713.11621.221.524.82728.930.2

Q: You take a medical test and the doctor tells you that your wellness z-score is 1.86. What percent of…

A: Let X be a random variable from standard normal distribution with mean = 0 and standard deviation =…

Q: you want to do a survey to help you estimate the true porportion of current students who have…

A:

Q: Is 83% a parameter or a statistic?

A: The difference between a statistic and a parameter is that statistics describe a sample, whereas, a…

Q: Determine the following percentile X 0.95,16

A: From the given information, it is given that:n=16 and p=0.95

Q: Consider the chart below that describes the average student runner speeds. Find the percentile…

A: Given data of average student runner speeds as shown below2 2.5 3 4 5 6 2.75 8 107 4 5.5 8 2 3.5 5.5…

Q: The mean GPA for 138 residents of the local apartment complex is 1.9. What is the best point…

A: Solution: From the given information, the mean GPA for 138 residents of the local apartment complex…

Q: iven the following data, find the weight that represents the 56th percentile. Weights of Newborn…

A: The data is given on the weight of the babies.Given that,Sample size To find the 56th percentile.

Q: Calculate the 20th percentile of the data set shown 5.5 7.5 14 14.5 15.8 18 19.3 23.7 24.3 26.1

A: Given information: 5.5, 7.5, 14, 14.5, 15.8, 18, 19.3, 23.7, 24.3, 26.1

Q: Calculate the Percentile Rank for a student who becomes fourth (4th) in terms of the GPA categorized…

A: The formula for percentile rank of score is, Percentile rank of score=Number of values below…

Q: Find the 5 number summary for the data shown 9. 18 20 35 44 47 48 64 65 97 5 number summary: Use the…

A:

Q: Use the following cell phone airport data speeds (Mbps) from a particular network. Find the…

A: Concepts and reason Deciles: Deciles are such values which divide the total number of observations…

Q: Calculate the 60th percentlle of the data shown 2.7 7.3 9.6 10.1 12.1 21

A: Given that, The number of observations is given. Percentile is given by,

Q: rage sales per agent per month from March to May target? Answer: % Which one is the category with…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: 0.25 inches. About 95% of the distribution lies between what two values?

A:

Q: Use the following cell phone airport data speeds (Mbps) from a particular network. Find the…

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

Q: Calculate the 65th percentile of the data shown x 8.2 14 18.6 21.9 41.8 47.3 54 54.2 59.8 69.4

A: Given information: The data are arranged in ascending order as given below: 8.2, 14, 18.6, 21.9,…

Q: What is the percentile rank x=15 and what is the score for 75th percentile?

A: If the we have no of scores is 15 then we have formula for percentile rank as:…

Q: A market researcher at a major clothing company that has traditionally relied on catalog​ mail-order…

A: Introduction :-  We have to explain in this context what the 7% represents in the given context.

Q: what z value correlates to 98.96% under  the curve

A: If Z represents standard normal distribution, then we need to find the value z such that…

Q: Calculate the 80th percentile of the data shown x 14.9 15.1 16.4 17.4 17.6 18.3 19.4 22.7 25.8…

A: Given data in ascending order -14.9, 15.1, 16.4, 17.4, 17.6, 18.3, 19.4, 22.7, 25.8, 28.8Total…

Q: A histological test for cancer has sensitivity, specificity, positive predictivity, and negative…

A: To find, Which of the four indicators would you use to reassure a patient that the positive result…

Q: Find the 5 number summary for the data shown x 3.9 5.4 6.5 8.9 11.3 11.8 24.6 27.8 28.4

A:

Q: b. Determine the 82th Percentile value (P82). Provide the exact answer

A: We have given that,  The data set is,  9, 8, 10, 4, 13, 13, 11, 4, 9, 6, 5, 15, 15, 2, 14, 10, 7, 5,…

Q: Calculate the 90th percentile of the data shown x 7.9 9.7 18.9 19.3 21.9 26.1 27.9 28.8 29.1 29.4

A: The data shows the ten observations.

Q: what level of measurement is the rating of the overall quality of a textbook from excellent to poor

A: what level of measurement is the rating of the overall quality of a textbook from excellent to poor?

Continuous Probability Distributions

Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.

Normal Distribution

Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!