Question

The ages of 11 students enrolled in an on-line macroeconomics course are given in the following...

The ages of 11 students enrolled in an on-line macroeconomics course are given in the following steam-and-leaf display:

Stem     Leaf
----- -----------------------
1 9    9
2 1    5    5    8    9
3 0    1    2   
4 0

Here 1|9 implies 19 years (i.e. the stem represents tens and leaf represents units).

The standard deviation of the age distribution is  years. [Answer up to four digits after decimal]

Incorrect. Tries 2/3 Previous Trie
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The ages of 11 students enrolled in an on-line macroeconomics course are given in the following...
The ages of 11 students enrolled in an on-line macroeconomics course are given in the following steam-and-leaf display: Stem | Leaf ----- ----------------------- 1 9    9 2 1    5    5    8    9 3 0    1    2    4 8 Here 1|9 implies 19 years (i.e. the stem represents tens and leaf represents units). Suppose there are x number of students who are 29 years old. Then x = 3 2 1 4 Tries...
The ages in years of 21 people in a swimming pool are displayed in the stem-and-leaf...
The ages in years of 21 people in a swimming pool are displayed in the stem-and-leaf plot. Determine the median age of people in the pool. 0 2 4 5 6 7 8 8 8 1 0 3 7 9 2 2 4 7 3 6 4 1 2 4 5 6 4 8 median = years
Twenty random students are enrolled in the same course with different instructors (10 students in each...
Twenty random students are enrolled in the same course with different instructors (10 students in each class). Here are their final grades (5-point scale with ''5'' being an ''A'', etc). Calculate (and submit) the basic statistics for each class (mean, variance, std deviation) Instructor #1: 5, 5, 3, 2, 2, 2, 4, 3, 5, 1 Instructor #2: 2, 4, 4, 4, 3, 2, 5, 3, 4, 4
A college admissions director wishes to estimate the mean age of all students currently enrolled. In...
A college admissions director wishes to estimate the mean age of all students currently enrolled. In a random sample of 19 students, the mean age is found to be 23.7 years. From past studies, the ages of enrolled students are normally distributed with a standard deviation of 10.4 years. Construct a 90% confidence interval for the mean age of all students currently enrolled. 1. The critical value: 2. The standard deviation of the sample mean: 3. The margin of error...
Consider the following stem-and-leaf display for grades of 36 students in a statistics class:: 5 |...
Consider the following stem-and-leaf display for grades of 36 students in a statistics class:: 5 | 8 6| 0 2 6 8 7 | 2 2 2 4 5 5 8 9 9 8 | 1 1 2 5 5 6 6 6 8 9 9 | 1 2 3 4 5 5 6 8 8 9 9 9 In a pie chart, how many degrees are in the pie slice for the class "91-100"
From the following stem-and-leaf display, find the 1st quartile, the 2nd quartile (or median), the 3rd...
From the following stem-and-leaf display, find the 1st quartile, the 2nd quartile (or median), the 3rd quartile, the interquartile range, and interpret the interquartile range result. What values will be considered outliers? 1| 9 2| 0 1 2 2 6 9 3| 0 1 2 3 4 5 5 7 8 8 9 4| 2 6 5| 0 1 2 4 5 7 8 9 6| 5 9
The following stem-and-leaf plot represents a sample of exam scores.       Exam Scores       4 |...
The following stem-and-leaf plot represents a sample of exam scores.       Exam Scores       4 | 5 6 8       5 | 3 4 5 6 9       6 | 2 3 5 6 6 9 9       7 | 0 1 1 3 3 4 5 5 5 7 8       8 | 1 2 3 6 9       9 | 3 5 7 8 The variance & coefficient of variation for the examination scores is QQQQ
Here is a data set summarized as a stem-and-leaf plot: 3   00024677779 4 0003445677888899 5 04456...
Here is a data set summarized as a stem-and-leaf plot: 3   00024677779 4 0003445677888899 5 04456 6 669 How many data values are in this data set? n=n= What is the minimum value in the last class? What is the minimum value in the entire sample? How many of the original values are greater than 40? The test scores for two algebra classes are shown in the Stem and Leaf below. Test Scores Period 9 Period 10 9 8 2...
PART I The owner of a local golf course wanted to determine the average age (in...
PART I The owner of a local golf course wanted to determine the average age (in years) of the golfers that played on the course. In a random sample of 27 golfers that visited his course, the sample mean was 47 years old and the standard deviation was 5.11 years. Using this information, the owner calculated the confidence interval of (45.3, 48.7) with a confidence level of 90% for the average age. Which of the following is an appropriate interpretation...
Following are the ages of 23 Academy Awarad winner Actors. 41 31 57 62 37 71...
Following are the ages of 23 Academy Awarad winner Actors. 41 31 57 62 37 71 58 73 69 52 74 64 72 30 33 47 26 36 42 27 29 67 55 Create the Stem and leaf and find the following parts:       Find the value reprtesenting 20th percentile?    Find the value reprtesenting 65th percentile?    Blank 1: Blank 2: Blank 3: Blank 4: Blank 5: Blank 6: Blank 7: Blank 8: Blank 9: Blank 10: Blank...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT