What is the percentile for Colorado, where 10.1% of the residents are aged 65 and olde

Q: Out of the numbers listed below, what number is in the 90th percentile? what percentile is 52,598?

A: From the given information, the total number of numbers in the given list is observed to be 15. Now…

Q: Students scored the following grades on a statistics test: 80, 80, 82, 84, 85, 86, 88, 90, 91, 92,…

A:

Q: Find the third quartile for the average number of Facebook friends.

A: Let X denote the average number of Facebook friends users. Given that X ~ N(mean=122, SD=43) Let Q3…

Q: A recent survey by the U.S. Census Bureau determined that the median monthly housing rent was $643.…

A: W heaven to find asked percentage from given data.

Q: We would like to know: "What percentage of college students read the college newspaper every day?"…

A: There are two ways to draw conclusion about a population.

Q: Find 54th percentile, P54, from the following…

A: Enter the data in excel as shown below

Q: In June, an investor purchased 300 shares of Oracle (an information technology company) stock at $53…

A:

Q: When the Standard Score = -1, what is the percentile of the raw score? %3D O 2nd 14th O 16th 34th…

A: It is an important part of statistics. It is widely used.

Q: A recent survey by the U.S. Census Bureau determined that the median monthly housing rent was $637.…

A:

Q: What is the median nutritional status for the 7 individuals?

A: The number of nutritional status is 7.

Q: Anna is 3 years old and in the 42nd percentile for height in her age group. What does this mean?…

A: Given: 1)Anna is 3 years old and, 2) In the 42nd percentile for height in her age group. In the…

Q: (d) What is the percentile rank of a bag that contains 1425 chocolate chips?

A: We want the find the percentile rank

Q: A recent survey by the U.S. Census Bureau determined that the median monthly housing rent was $631.…

A:

Q: What are the steps for Finding Proportions for One Score?

A:

Q: Find the 54th percentile, P54, from the following data

A: Given: Number of samples (n) =39 Formula: Note: If "L" is a whole number then the value of the…

Q: What is the z-score corresponding to the 74th percentile

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: What statistic would you use if you wanted to see if there was a difference between three ethnic…

A: What statistic would you use if you wanted to see if there was a difference between three ethnic…

Q: competed in an ironman race, J

A: Here it is given that - 3500 people competed in an ironman race, John finished 805th,

Q: What is the value of the standard score for the sample proportion?

A: If mean if the proportion us P And standard deviation is √(pq/n) Then standard score or Z score for…

Q: Is the 50th percentile a typical value? Explain    which one is larger the mean or the median?…

A: Given a problem and a graph we have to write the answer of the problem and explain using the graph…

Q: Does the sample size have an effect on the mean of all possible sample means? Explain your answer.

A:

Q: in the highest 2.5 percent eat?  What is the z-score

A: Given that 2.5% of the highest area present in the data. That is, P(Z>z)=2.5%=0.025…

Q: In June, an investor purchased 3000 shares of Oracle (an information technology company) stock at…

A: Let, X be the share price of Oracle. X1=$53X2=$42X3=$45 Let, w be the number of shares.…

Q: What statistic would you use if you wanted to see if there was a difference between three ethnic…

A: Here we can assume that the math achievement is somehow measured using a quantitative data be it…

Q: Is there any bias in the survey question? Explain    What do you think would help students pay…

A: Given survey question: What do you think would help students pay attention in class?

Q: What is your test-statistic? tTest- O 2.058 O 2.508 O 2.805 2.850

A: Given Information: Porsche Driver: Sample size n1=16 Sample mean x¯1=50 Variance s12=9 Standard…

Q: We would like to know: “What percentage of college students read the college newspaper every day?”…

A: We have to find given probabiity.

Q: What is the 87.7 percentile of X~N(12,3)

A: Answer: Given that, X~N(12,3)

Q: How do you find the stardard deivation for a sample proportion?

A: The sample proportion is p, suppose.  Find q which is equal to 1-p Finf the sample size = n

Q: What do you think is the best number of respondents when conducting a research? Explain your answer.

A: The best number of respondents when conducting research: The number of respondents we need depends…

Q: What is the difference between a score/category’s frequency and its relative frequency (proportion)?

A:

Q: Find 44th percentile, P44, from the following data

A: Given data, we need to arrange it in ascending order. P44=?

Q: What well-being score represents the 45 percentile? *

A: It is given that the mean is 100 and the standard deviation is 20.

Q: Explain the relationships among the sample proportion, the number of successes in the sample, and…

A: Sample proportion: The fraction of number of members sampled which have a specified attribute and…

Q: Estimate the 97.5 percentile of 1996 verbal SAT scores. Refer to

A: From the given information, μ=505σ=110 Consider, the 16th percentile:…

Q: Assuming a sample size of 76, what is the 90th percentile for the AVERAGE teacher’s salary?

A: From the above question The given values are  n = 76 The calculate 90 th  percentile So the formula…

Q: Explain sample?

A: To Explain the sample??

Q: What is the percentile for a person that has taken 16 courses? (Your answer should be a %, such as…

A: Percentiles can be calculated using the formula  n = (P/100) x N, where P = percentile, N = number…

Q: The PRC wants to assess the difference in ratings of five different engineering board examinations.…

A: This is an ANOVA test for a single factor

Q: When the Standard Score = -2, what is the percentile of the raw score? O 2nd O 14th 16th 34th 84th

A: Given that, Standard score = -2

Q: A recent survey by the U.S. Census Bureau determined that the median monthly housing rent was $629.…

A:

Q: The mean salary of ten employees is 32,000.00 and the median is 30,000.00. The highest paid…

A:

Q: Espahol A nationwide job recruiting firm wants to compare the annual incomes for childcare workers…

A: Given : Claim : Tthe mean annual income of childcare workers in Utah is less than the mean annual…

Q: What is the sample for the study

A: The sample is the subset of the population.

Q: The 77th percentile is O.

A: X~N(50 ,49)Let Q be the 77th percentile .P(X<Q) =0.77⇒P(X-507<Q-507) = 0.77⇒ϕ(Q-507)  =…

Q: Bill received the following scores on his quizzes 54, 67, 78, 73, 92, 86, 78, 79, 81, 72 what is…

A: Use EXCEL Procedure to obtain the values of mean, range, Standard deviation, mode, median and…

Q: What is the 84th and 22nd percentile and what is the 7th and 9th decile

A: Solution To find the percentile and decile we will use Excel

Q: is the 95th percentile finish time, ? 95? (Round your answer to nearest tenth

A: To calculate the 95th percentile of a normal distribution, we used the formula as: X=μ+Zσ Where 'X'…

Q: What is the relative frequency of respondents who are in favor of the bill?

A: The relative frequency is the ratio of the number of favorable outcomes to the total number of…

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!