Enter a number rounded to one decimal if necessary. The data set is 52, 47, 48,...
Enter a number rounded to one decimal if necessary. The scores of this test are normally distributed with a mean of 79 and a variance of 25. Then AJ percent of the students scored 74 or lower, percent of the students scored between 74 and 84, and percent of the students scored 79 or higher. Hide hint for Question 2 Draw a graph and use the 68-95-99.7 distribution percentages.
Enter a number rounded to two decimals if necessary. The missing value in 41, 45, 54, 59, 29, 73, 64, and 77 is to have a normally distributed set of numbers.
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Enter a number rounded to one decimal if necessary. The scores of this test are normally distributed with a mean of 81 and a standard deviation of 6. Then A/ percent of the students scored 75 or lower, percent of the students scored between 75 and 87, and 18 A percent of the students scored 81 or higher.
Here is a set of sample data 3 9 15 23 29 33 38 41 48 54 60 64 75 81 83 84 85 91 97 Identify the 5 number summary (min, Q1, median, Q3, max) , , , ,
Enter a number rounded to one decimal if necessary. You corrected 11 tests and your substitute helped you finish for your class of 29 students. the mean for the tests you corrected was 83 and the mean for the entire class turned out to be 84. Your substitute calculated that the mean for the tests she corrected was ____.
4. Given the data set 27, 29, 51, 54, 45, 48, 60, 52, 51, 49, 52, 48, 43, 46, 45, 42, 50, 56, 45 Are there any values that would be considered outliers? Using the IQR, calculate the lower and upper limits (fences), and then identify any data values that would be considered outliers. Potential Outliers
Here is a data set: 1] 54 47 52 68 58 53 59 47 45 49 71 47 74 58 4 55 54 54 60 44 51 59 67 62 78 r11 56 63 59 51 44 You are examining the data with a stem-and-leaf plot. Here is the start of the plot. Finish the plot 4井: 44557779 5#: 11234445688999 6# 02378 ไน Get help Video 16 Points possible: 1 Unlimited attempts. Submit Type here to search
Enter a number rounded to two decimals. The following are the total yardages of a sample of 12 municipal golf courses: 7040, 6620, 6050, 6300, 7170, 5990, 6330, 6787, 6540, 6690, 6200, 6787. The sample median is 6620 A/ 1 and the sample mean is 6577 If you use John Tukey's method, quartile 1 is 6315 A/ and quartile 3 is
Problem 1: Confidence Interval for Percentage of B’s. The data set “STAT 250 Final Exam Scores” contains a random sample of 269 STAT 250 students’ final exam scores (maximum of 80) collected over the past two years. Answer the following questions using this data set. a) What proportion of students in our sample earned B’s on the final exam? A letter grade of B is obtained with a score of between 64 and 71 inclusive. Hint: You can do this...
Which one of the following suggests that the data set is approximately normal? O A. A data set with Q1 = 1330, Q3-2940, and s= 2440. O B. A data set with Q1 = 105, Q3-270, and s= 33. C. A data set with Q1 14, Q3-68, and s= 41 0 D. A data set with Q1-22, Q3-73, and s-21