Question 4: Option ( 2 ) The middle score when results are ranked in order of magnitude
Question 5: Option ( 2 ) Positively skewed
Question 4 (1 point) The median is 1) the most frequently occurring score on a test....
Question 1 This measure of central tendency provides the value that is most frequently occurring in a data set a. mode b. median c. mean d. distribution Question 2 This measure of central tendency can be affected by outliers a. mode b. median c. mean d. distribution e. A and B f. A, B, and C Question 3 Data sets can have more than one mode a. True b. False Question 4 There are how many measures of central tendency...
Question 4 1 pts For a set of 50 numbers a researcher calculates the following measures of central tendency: mode = 5, median = 40, mean = 60. This distribution of this data would be considered: negatively skewed bimodal positively skewed normal
1.The two branches of statistics are (1.1) a) dependent and independent c) descriptive and inferential 2.When we compute averages and standard deviations or graph data, we are b) population and sample d) ull and alternative workinq within a)descriptive statistics c) hypothesis testing 3. Which of the following groups is likely to have a lower standard deviation? b)inferential statistics d) statistical graphing (3.2) Group A: average heights of 13-year-old males Group B: average heights of 25-year old males a) Group A...
Question 3 (1 point) Choose the description which best describes the shape of this histogram. 50 100 150 200 1) Contaminated 2) Uniform 3) Symmetric 4) Left-skewed 5) Right-skewed
QUESTION 1 The normal curve is particularly useful as a model for a. data in which mean and median differ b. many populations of psychological and educational data c. distributions of sample statistics d. both (b) and (c) above QUESTION 2 A distribution has a mean of 60 and a standard deviation of 8. For a score of 72, the equivalent z score a. is +1.5 b. is between 0 and +1.0 c. is + 1.2 d. cannot be determined...
Question 4 (1 point) Choose the description which best describes the shape of this boxplot 0 50 100 150 1) Right-skewed 2) Bimodal 3) Uniform 4) Contaminated 5) Left-skewed Question 5 (1 point)
1: Question 4 (1 point) Choose the description which best describes the shape of this boxplot. 6 8 0 50 100 150 1) Right-skewed 2) Bimodal 3) Uniform 4 Contaminated
Homework 2: Problem 12 Problem Value: 1 point(s). Problem Score: 0%. Attempts Remaining: 4 attempts (1 point) nin nax 01 14 79 nin 02 100 nin D3 56 8 18 28 38 40 58 6 7888 90 188 118 Which of the following are true? A. At least a quarter of the data values in D2 are less than all of the data values in D3 B. The data in D3 is skewed right C. Three quarters of the data...
objective question What is the mode and the mean for the following set of numbers? {4,9,8,2,16,4,4,8,9,6} O A. Mean = 7, mode =8 O B. Mean = 7, mode =4 O C. Mean = 6, mode =8 O D. Mean = 8, mode =9 You are conducting a survey of the people of the United Kingdom to find out how popular the racket sports are. You randomly choose people to call, and make 1,000 phone calls to people scattered across...
Consider the number of days absent from a random sample of six students during a semester: A= {2, 3, 2, 4, 2, 5} Compute the arithmetic mean, geometric mean, median, and mode by hand and verify the results using R Arithmetic Mean: X=i=1nXin=2+3+2+4+2+56=3 mean(data2$absent) [1] 3 Geometic Mean: GMx=Πi=1nX11n=2∙3∙2∙4∙2∙516=2.79816 >gmean <- prod(data2$absent)^(1/length(data2$absent)) > gmean [1] 2.798166 Median: X=12n+1th, Xi2,2,2,3,4,5, n=6=126+1th ranked value=3.5, value=2.5 days absent >median(data2$absent) [1] 2.5 Mode: Most frequent value=2 > mode <- names(table(data2$absent)) [table(data2$absent)==max(table(data2$absent))] > mode [1]...