In general, % of the values in a data set lie at or below the 74th percentile.

Q: What percent of the department faculty have less than 25 years of service? Answer:  % (b) If a…

A: From the given histogram we need to answer certain questions.

Q: Find the z-score that cuts off 70% in the body on the right.

A:

Q: A statistics professor made the following histogram for the scores on her class’s first exam.   If…

A: From the Histogram, the scores and the corresponding frequencies are, Given that the passing score…

Q: Determine the percent of data greater than z=−1.40.

A: Know that  X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: What percent of data is less than -8%

A: here we can see that shape of curve is bell shaped and symmetric about x = -6 so it is normal…

Q: Police Department A and Department B each use the same set of data about the number of safety…

A: Given that  Department A calculates an interval of 12% to 15%, Department B calculates an interval…

Q: n the brackets, how did you know to use the 21 and 20 percentiles?

A: The number of observations, The data set…

Q: Find the range of the following data points: 100.1, 97, 77, 68, 123.4, 23.5, 214, 156, 214.2, 211,…

A:

Q: A searcher is interested in if there is a relationship between whether a student enjoys mathematics…

A: Given: α=0.025 The observed values are given as   Maths: Yes  Maths: No Total Stats: Yes  70 49…

Q: The histogram below gives the length of service of members of the Department of Chemistry at a…

A: Given:

Q: Many athletes (and their parents) worry about the risk of concussions when playing sports. A…

A: First let us sort the head circumferences (in inches) for the players on the team; No. Head…

Q: Heights of NBA All-Star players are normally distributed. 97.5% of players have a height of 85…

A:

Q: Question 4 Some concepts are very important when forecast a data series. Explain the relationship…

A: Time series forecasting is the use of model to predict future values based on previously observed…

Q: The cost for board exam review services costs P11500, P11750, and P11250 for years 2018, 2019, and…

A: A range is an which defines the min. & max. values for any set of nos. of a particular variable.

Q: On a hockey team, there are 14 players. The captain of the team scored on the team, and less than…

A: Given : There are 14 players Captain of the team scored 35 goals last year, which is more than 10…

Q: A local car dealership keeps records of complaints received from its customers. Complaints for last…

A: A local car dealership keeps records of complaints received from its customers. Complaints for last…

Q: Find the percent of 16/20 and 4/20. What are the relationships between the answers?

A:

Q: The data in the table represent the number of licensed drivers in various age groups and the number…

A: Given :

Q: A poll was conducted on a representative sample of 600 adults living in the United States in order…

A: A poll was conducted on a representative sample of 600 adults living in the United States in order…

Q: alculate the 40th percentile of the data shown, 1.1,5.5,9,14.3,20.6,24.3,25.6,27.1,27.6,28.7

A: Answer:- Given data,               1.1,5.5,9,14.3,20.6,24.3,25.6,27.1,27.6,28.7               Find…

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: The following are the GPAs of 18 r/s SCC students: 1.3, 1.5, 1.7, 2.2, 2.5, 2.6, 2.6, 2.6, 2.6, 2.8,…

A: Given data: 1.3, 1.5, 1.7, 2.2, 2.5, 2.6, 2.6, 2.6, 2.6, 2.8, 2.9, 2.9, 3.0, 3.1, 3.5, 3.5, 3.6, 3.9…

Q: Calculate the 30th percentile of the data shown

A: Data Set :12.713.11621.221.524.82728.930.2

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. CPA HO Actuary 30 40 50 60 70…

A:

Q: what is the annual income of a household in the 90th percentile of annual household income in…

A: In normal distribution mean, median and mode are equal Mean=Median=Mode=75847, Standard…

Q: Calculate the 23th percentile of the data shown x 26.8 27.3 30.9 33 33.9 34.9 39.7 53.4 53.8 69.2

A: The provided information is as follows:26.827.330.93333.934.939.753.453.869.2The number of…

Q: A nurse practitioner is studying the effects of sugary drinks on weight gain. To begin the study,…

A: Let us suppose the sample size equals n = 100 From the give relative frequency histogram we have the…

Q: 1.8 2.3 6.7 11.3 16.7 25.2 26.9 27.9

A: Percentile is the value in the data below which certain percentage of the data lie.   For computing…

Q: At a university 60% of students take a math course, 50% take an English course. Assume Math and…

A: It is given that at a university 60% of students take a math course, 50% take an English course. It…

Q: For the data set, {8, 3, 1, 11, 8, 7}, Q1 3.0 %3D Q3 8.0 ニ IQR = | 8.25

A:

Q: q11- Median is which percentile of the data? Select one: a. 25th. b. 50th. c. 75th. d. 80t

A: b. 50th

Q: lecture(12.3): A statistics class is made up 32% in person learners  and has 24 in person learners.…

A:

Q: Part 2: Skills practice 1. The test scores of 40 students are listed below. Find P71. What is the…

A: Question 1: This question asks to find the percentile of a score of 71 out of 40 test scores.…

Q: You have a sample of 10 (sorted) scores: -15.5 -13.4 -12.7 -12.2 -12 -10 -9.1 -8.9 -7.9 -7.1…

A: From the provided information,Number of observations (n) = 10

Q: A survey asked office workers what they like t- do when taking a break from work. Preferred break…

A:

Q: The numerical summary that is used for categorical data is a proportion. Group of answer choices…

A: It is an important part of statistics.  It has got wide applications in all forms of statistical…

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: 5% of all Americans live in poverty. If 43 Americans are randomly selected, find the probability…

A: given that 15% of all Americans live in poverty. If 43 Americans are randomly selected.

Q: Calculate the 75th percentile of the data shown x 1.1 4.5 7.2 8 12.4 15.7 18.9 25.4 26.5 27.3 28.6…

A: We have to find a value such that 75% of the values are smaller than that value.Here,the total…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.