EN ENGINEERING STUDENTS HAVE THE FF. HEIGHTS (IN FT): 5.8 4.8 4.9 5.9 DETERMINE THEIR STANDARD DEVIATION (USE 4 DECIMAL PLACES, DO NOT INCLUDE THE UNIT) 5.2 5.9 6.2 5.11 4.11 5.6
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- are single or married. Her f Population 1 Calculate the upper and low population proportions, p1The scores and their percent of the final grade for a statistics student are given. What is the student's weighted mean score? Score Percent of final grade O Homework 82 15 Quiz 87 10 Quiz 97 10 30 Project Final Exam 97 91 35 The student's weighted mean score is (Simplify your answer. Round to two decimal places as needed.)The mean speed of 8 cars 70. What is the speed of Accent car? Car Corolla Yaris Avalon Elantra Sonata a Accent Selots Optima Speed 72 65 90 58 85 55 60 O a. 55 O b. 75 Oc 85 O d. 65
- Calculate the standard deviation of the data shown. Use technology. X 14.7 8.6 7.4 6.1 21.4 17.5 Round to 2 places.In California, we need more rain to sustain the health of our natural environment, argriculture, and economic. A group of statistics students in Oxnard College recorded the amount of rain during 2016-2017 school year, measuring the intensity by the inches of rain, and the results were: Inches of Rain 2. 4 Frequency 4 4 3 1 3 The mean (T) rain intensity: inches (Please show your answer to 1 decimal place.) The median rain intensity: inches The mode rain intensity: inches (Please separate your answers by ',' in the bimodal situation. Enter DNE if there is no mode or if there are more than two modes.) Submit Question N 16 rch home ins prt sc delete 144The scores and their percent of the final grade for a statistics student are given. What is the student's weighted mean score? Score Percent of final grade Homework 81 20 Quiz Quiz 90 15 92 15 Project Final Exam 96 20 91 30 The student's weighted mean score is (Simplify your answer. Round to two decimal places as needed.)
- The blood pressure in millimeters was measured for a large sample of people. The average pressure is 140 mm, and the SD of the measurements is 20 mm. The histogram looks reasonably like a normal curv Use the normal curve to estimate the following percentages. Choose the answer that is closest to being correct. A 19.1% B 30.9% C 38.2% D 69.1% E 68.27% A The percentage of people with blood pressure between 130 and 150 mm. B The percentage of people with blood pressure between 140 and 150 mm. D The percentage of people with blood pressure over 150 mm.The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Click the icon to view the histogram. Complete the table. Round values to the nearest tenth as needed. Graph/chart f Midpoint x xf 70.5 Ay 30- 92.5 26 25- 114.5 136.5 20- 158.5 15- 12 Ef = Exf = 10- Find the mean of the data set. 5- X = (Round to the nearest tenth as needed.) 48.5 70.5 92.5 114.5 136.5 158.5 Complete the table. Round values to the nearest tenth as needed. Midpoint x (x-x)? (x-x)?f X-X 70.5 Print Done 92.5 114.5 136.5 158.5 (x-x)?r= ] ofThe scores and their percent of the final grade for a statistics student are given. What is the student's weighted mean score? The student's weighted mean score is (Simplify your answer. Round to two decimal places as needed.) Homework Quiz Quiz Project Final Exam Score Percent of final grade 86 10 83 10 98 10 98 40 89 30