WGU C955 – PA PRACTICE TEST

What is 3/4 divided by 2/3? A) 9/8 B) 5/12 C) 5/7 D) 6/7 - ANSWERS9/8 A county park has hiking paths with lengths of 1.05, 3.6, 3.17, and 2.2 miles. What is the total length, in miles, of hiking paths in the park? A) 9.02 miles B) 10.02 miles C) 10.12 miles D) 11.2 miles - ANSWERS10.02 miles If there are 2 tablespoons in 1 fluid ounce, how many tablespoons does the following calculation yield? 4 fl oz - 1.5 tbsp 0.5 tbsp 1 tbsp 2.5 tbsp 6.5 tbsp - ANSWERS6.5 tbsp Solve for X: X - 5/4 = 2/3 A) 3/12 B) 7/12 C) 10/12 D) 23/12 - ANSWERS23/12 Solve for X: X+5/3=2/3 A) -3 B) -1 C) 1 D) 3 - ANSWERS-1 Given the inequality: 2y + 6 20 Which graph is the solution? A) {{ y 3 }} B) {{ y 6 }} C) {{ y 7 }} D) {{ y 7 }} - ANSWERS{{ y 7 }} Which graph is the solution for y 8? A) {{ unfilled circle on 8, arrow pointing left }} B) {{ filled circle on 8, arrow point left }} C) {{ unfilled circle on 8, arrow pointing right }} D) {{ filled circle on 8, arrow point right }} - ANSWERS{{ unfilled circle on 8, arrow pointing left }} Which graph is the solution for 4y - 6 18? A) {{ y 4 }} B) {{ y 6 }} C) {{ y 4 }} D) {{ y 6 }} - ANSWERS{{ y 6 }} What is the correct line graph for y = 3x + 5? A) (0,5) to (2,11) B) (0,-5) to (2,-11) C) (0,3) to (2,5) D) (0,3) to (2,-7) - ANSWERS(0,5) to (2,11) What is the correct line graph for y = -2x + 9? A) (0,9) to (4.5,0) B) (0,9) to (3,0) C) (0,-9) to (5,-19) D) (0,-9) to (5,-24) - ANSWERS(0,9) to (4.5,0) A normally distributed data set has a mean of 25 and a standard deviation of 2. Which percentage of the data falls between 23 and 25? A) 34.0 B) 68.0 C) 95.0 D) 99.7 - ANSWERS34.0 A given data set is normally distributed with a mean of 200 and a standard deviation of 5. Which two values does 95% of the data fall between? A) 180-220 B) 185-225 C) 190-210 D) 195-235 - ANSWERS190-210 In a statistics class, 40 students are asked to write their age on a piece of paper and place the paper in a box. After rotating and shaking the box, 5 pieces of paper are drawn from the box at random. The data results are as follows: 36 22 21 20 19 What is the median for this data set? A) 17 B) 21 C) 24 D) 28 - ANSWERS21 A new video gaming site wants to know what the median age is of its adolescent population so they can focus on activities for these clients. A data analyst recorded the ages of 12 adolescents who used the site over a three-month period. The results are given below: Age ,Frequency 13 ,1 16 ,2 17 ,2 18 ,3 19 ,4 What is the median age of the adolescents? A) 17.0 B) 17.2 C) 18.0 D) 18.6 - ANSWERS18.0 The graph shows a company's profits, in thousands of dollars, for five different regions: {{ Y = Profits in Thousands of Dollars X = A B C D E A = 29 B = 34 C = 15 D = 40 E = 22 }} Based on this graph, what is the closest approximate total profit (in thousands) for all five regions? 100 140 170 200 - ANSWERS140 The bar chart below summarizes the final grade distribution for a statistics course: {{ Y = Count X = A B C D F A = 5 B = 9 C = 11 D = 8 F = 7 }} Which percentage of students earned a B in the statistics course? A) 9% B) 22.5% C) 27.5% D) 40% - ANSWERS22.5% Which statement is true regarding the distribution of the histogram below? {{ Positively skewed histogram }} A) The mean of the distribution is greater than its median. B) The median of the distribution is greater than its mean. C) The mean and the median of the distribution are equal. D) The relationship between the mean and the median cannot be determined from the histogram. - ANSWERSThe mean of the distribution is greater than its median. In one 12-hour shift, a nurse spends four hours at patient bedsides, two hours pulling medications, one hour on breaks, two hours documenting, and three hours doing other activities. An analyst would like to display the data by representing the 12-hour shift as one whole. Which display method should the analyst use to meet this goal? A) Box plot B) Stem plot C) Histogram D) Pie chart - ANSWERSPie chart For which type of website data would a histogram be most appropriate? A) Length of visit in minutes B) Location of visitor by country C) Frequently viewed pages D) Most popular method of arrival - ANSWERSLength of visit in minutes A company has 14 employees. Six employees work day shift, five employees work swing shift, and three employees work night shift. Which type of graph should be used to display how many employees work each shift? A) Stem plot B) Bar graph C) Box plot D) Histogram - ANSWERSBar graph The bar chart below displays the daily number of visits for the five most frequently viewed web pages of a retailer's website: {{ Y=Number of Visits per Day, going from 0 to 1400 in increments of 200 1st Bar=700 2nd Bar=900 3rd Bar=1100 4th Bar=1250 5th Bar=1300 }} Why is this chart an inaccurate representation of the data? A) The horizontal labels are missing. B) A histogram instead of a bar chart should be used for this type of data. C) A pie chart instead of a bar chart should be used for this type of data. D) The vertical axis should start at 600 instead of 0 based on this data. - ANSWERSThe horizontal labels are missing. Two employees, Smith and Jones, had first quarterly sales of $50,000 and $60,000, respectively. The graph below depicts this information: {{ Y=Thousands of Dollars, going from 40 to 100 in increments of 10 X= Smith Jones Smith = 50 Jones = 60 }} What is true about this graph's depiction of the data? A) The graph reflects the results perfectly. B) The graph misrepresents the data by starting the vertical axis at 40, making it seem that Jones had twice Smith's sales. C) The graph misrepresents the data by using different colors for the bars that show Smith's and Jones's sales. D) The graph misrepresents the data by including values on the vertical axis as high as 100 when neither Smith nor Jones had sales that high. - ANSWERSThe graph misrepresents the data by starting the vertical axis at 40, making it seem that Jones had twice Smith's sales. The chart below shows the population of Texas from 1900 through 2000 (in millions of people): {{ Y=Texas Population in millions, going from 0 to 25 in increments of 5 X= }} Why is this graph a misleading representation of this data? A) Rounding to the nearest million distorts the true values. B) The horizontal scale is uneven. C) The vertical scale is uneven. D) The x-axis and y-axis should be reversed. - ANSWERSThe horizontal scale is uneven. A study was conducted to see if blood type influenced height. Which type of classification is this? A) Categorical to categorical B) Categorical to quantitative C) Quantitative to quantitative D) Quantitative to categorical - ANSWERSCategorical to quantitative A study was conducted on the possible relationship between smoking status and whether or not alcohol is consumed. Which type of classification is this? A) Categorical to categorical B) Quantitative to categorical C) Categorical to quantitative D) Quantitative to quantitative - ANSWERSCategorical to categorical A study is conducted on the possible relationship between gender and income of the employees at a marketing company. Which numerical measure is appropriate for this study?