Iqr - Study guides, Class notes & Summaries

Volume of a cone correct answersV=(1/3)πr²h Area of a triangle correct answersA=(1/2)bh Area of a circle correct answersA=πr² Volume of a regular prism correct answersV=lwh Volume of a cube correct answersV=s³ Volume of a sphere correct answersV=(4/3)πr³ Volume of cynlinder correct answersV=πr²h Outlier correct answers1.5 x IQR above or below upper or lower bound Z-score correct answersz = (x - mean) / standard deviation Area of a trapezoid correct answersA=1/...

Stats Part 2 Test with Complete Solutions The box plots below show the distribution of grades in one class on two tests. Which measures of center and variability would be best to use when making comparisons of the two data sets? - Answer-mean and MAD Takiya recorded the heights of two sets of plants, one set planted in the shade and one set planted in full sun. Her data are shown in the plots below.Which best explains the variability of the sets? - Answer-The full sun plants set has greate...

Knew ton Alta - Chapter 2 - Descriptive Statistics Part 2 Questions and Answers Latest Updated Find the mode of the following amounts (in thousands of dollars) in checking accounts of randomly selected people aged 20-25. 2,4,4,7,2,9,9,2,4,4,11 If we count the number of times each value appears in the list, we get the following frequency table: Note that 4 occurs 4 times, which is the greatest frequency, so 4 is the mode of the amounts (in thousands of dollars) in checking accounts of rando...

Basic Statistics and Epidemiology for CTR Exam (Latest 2023/2024) Actual Questions and Answers 100% Correct 1. Measures of central tendency Answer: mean, median, mode 2. Measures of variability or dispersion Answer: range, variance, standard deviation andinterquartile range (IQR) 3. Measures of Shape Answer: skewness, symmetric (normal curve or bell curve), andbimodal 4. Skewness Answer: Degree of asymmetry in a distribution Positive - Tail extending out to right (larger numbers)Neg...

UGBA 104 M1 Exam 2023 Questions and Answers calculate outliers IQR method - ️️ IQR below; Q1 - 1.5 * IQR IQR above; Q3 + 1.5 * IQR how to calculate percentiles - ️️ percentile (L) = (n+1) * P/100 calculate z score outlier - ️️ (value-mean)/SD rule of thumb for z score outlier - ️️ above or below 3 SDs away which outlier method is more lenient - ️️ z score, it goes further from mean than the IQR method ie the IQR gives a z score less than 3 cross tabulation - ️️ a...

What is needed for all Stemplots? correct answer: Key showing how to read the plot What is in the 5 number summary? correct answer: minimum, Q1, median, Q3, maximum How do you calculate IQR? correct answer: Q3-Q1 - IQR is a number, not a range What does VSCO stand for? correct answer: variability, shape, center, outliers WHAT DO YOU NEED FOR FULL POINTS? correct answer: CONTEXT "Describe the distribution" = correct answer: = VSCO + Context When describing shape without...

STA2023: Summary Statistics Exam Questions And Answers ( Verified And Updated ) A number that arises from a set or sample of data is a what? - answerStatistic R = range = ? - answermax - min IQR = Interquartile Range = ? - answerQ3 - Q1 Lower Fence = ? - answerQ1 - (1.5 * IQR) Upper Fence = ? - answerQ3 + (1.5 * IQR) x-bar = ? - answerAverage/mean Σx = ? - answerTotal value Σx^2 = ? - answerTotal squares Sx = ? - answerSample standard deviation σx = ? - answerPopulation standard d...

BESC 3010 CH 4 QUESTIONS AND ANSWERS | 2024/2025 | GRADED A+ What are the key features of a box plot? A box plot visually summarizes a data set's central tendency, spread, and outliers by displaying the median, quartiles, and extreme values as a rectangular box with "whiskers." How do you interpret skewness in a data distribution? Skewness indicates the asymmetry of a distribution; positive skew means more data points are concentrated on the left, while negative skew suggests...

1. Which of the following statistics are unaffected by a single large outlier? (More than one) * - Answer- Median, mode, Interquartile range (IQR) 2. Which of the following is most suitable for policy making based on income distribution? * - Answer- Median Because of assumed skewed distribution 3. If we study data from a population whose mean is 200 and standard deviation is 30, which of the following data points has a z-score of -3? * - Answer- 110. 4. Which of the following statist...

Of the following dotplots, which represents the set of data that has the greatest standard deviation? : B split in half A random sample of 374 United States pennies was collected, and the age of each penny was determined. According to the boxplot below, what is the approximate interquartile range (IQR) of the ages? graph A 8 B 10 C 16 2 | P a g e D 40 E 50 : C 16 graph The histogram above shows the number of minutes needed by 45 students to finish playing a computer ga...