WGU C784 - Applied Healthcare Statistics Pre-Assessment

WGU C784 - Applied Healthcare Statistics Pre-Assessment Given the following set of numbers: 3.3, -2.3, -16, 25. What are the square roots of the whole number? A. +/- 2.3 B. +/- 3.3 C. +/- 4 D. +/- 5 D. +/- 5 Given the following set of numbers: 10, 2.5, -4, -4.5, 5. What is the sum when adding together only the whole numbers? A. 5.5 B. 11 C. 12.5 D. 15 D. 15 Given the following expression: 4 + 7 × (6 - 3)2. What is the answer using proper order of operations? A. 25 B. 46 C. 67 D. 99 C. 67 Given the following expression: 5 x (30 - 27)2 + 4. What is the correct answer using the proper order of operations? A. 34 B. 49 C. 65 D. 81 B. 49 What is the greatest common factor of 132 and the square root of 121 using prime factorization? A. 1 B. 2 C. 10 D. 11 D. 11 What is the greatest common factor of 24 and 84 using prime factorization? A. 2 B. 4 C. 8 D. 12 D. 12 What is 3/14 - 1/7? A. 1/14 B. 2/7 C. 5/14 D. 3/2 A. 1/14 What is 2/3 + 1/4? A. 11/12 B. 3/12 C. 3/7 D. 8/3 A. 11/12 A patient's protein intake for today has been 15.76g, 8.49g, and 22.58g. What is the total protein intake rounded to the nearest tenth of a decimal? A. 46.5g B. 46.8g C. 46.9g D. 47g B. 46.8g Given the equation: (.5475 - .3025) x .15. What is the solution rounded to the nearest thousandth? A. .03675 B. .0368 C. .368 D. .037 D. .037 An intravenous drip is infused at a rate of 4.5 milliliters per minute. How many milliliters are infused per hour? A. .075mL B. 2.7mL C. 75mL D. 270mL D. 270mL A patient's medication was increased by 40 milligrams. What is the percent increase in the medication if the original medication was 180 milligrams? A. 2.2% B. 4.5% C. 22.2% D. 45% C. 22.2% What is the Fahrenheit equivalent for a patient's room that needs to be kept at 25 degrees Celsius? A. 70° B. 75° C. 77° D. 80° C. 77° What is the Celsius equivalent for a patient who is running a fever of 102 degrees Fahrenheit? A. 37.9°C B. 38.9°C C. 39.9°C D. 40.9°C 38.9°C What is the value of x in this equation? 2x + 3 = 13 A. 5 B. 10 C. 76 D. 106 A. 5 Solve the following equation: x − 5/4 = 2/3. What is the value of x? A. 3/12 B. 7/12 C. 10/12 D. 23/12 D. 23/12 Question #21: Battery lifetime is normally distributed for large samples. The mean lifetime is 500 days, and the standard deviation is 61 days. Which percent of batteries have lifetimes longer than 561 days? A. 16 B. 21 C. 26 D. 31 A. 16 Question #22: Five hundred values are normally distributed with a mean of 125 and a standard deviation of 10. Which percent of the values lies between the interval 115-135? A. 50 B. 68 C. 95 D. 99 B. 68 Question #23: A pediatric unit wants to know what the median age is of its adolescent population so they can focus on activities for these clients. The unit staff recorded the ages of 12 adolescents over a three month period: Age(s): Frequency(ies): 13 1 16 2 17 2 18 3 19 4 What is the median age? A. 18.6 B. 17 C. 17.2 D. 18 D. 18 Question #24: A survey asked residents to rate their community hospital on a scale of 1 to 10, with 10 being the most happy with the hospital services. The data shows a positively skewed distribution. How are the mean, median and mode related? A. Mean Median Mode B. Mode Median Mean C. Mean Mode Median D. Median Mode Mean B. Mode Median Mean Question # 25: An intensive care unit patient has frequent systolic blood pressure measures represented in the following data set: 140, 150, 154, 154, 170, 176, 180. What is the mode? A. 140 B. 154 C. 160.57 D. 170 B. 154 Question # 29: The following weights were recorded for children in a pediatrician's office: 93, 84, 70, 48, 59, 66, 88, 94, 84, 67, 74, 58, 82. The analyst wants to see the distribution of the weights, but still be able to see the individual values. Which method of display should be used? A. Box plot B. Stem plot C. Bar chart D. Pie chart B. Stem plot Question # 30: The following heart rates were recorded for patients in an intensive care unit: 98, 88, 74, 83, 76, 99, 81, 73, 60, 66, 88, 94, 73, 82, 95, 85, 76. Which method of display is appropriate to see the exact values of individual observations? A. Stem plot B. Pie chart C. Bar chart D. Histogram A. Stem plot Given the following dataset representing hours of overtime worked by nurses in one week: [Nurse A] 3 [Nurse B] 7 [Nurse C] 2 [Nurse D] 4