02 May QuestionMAT201 BASIC STATISTICS
Question
MAT201 BASIC STATISTICS
1. Describe the measures of central tendency. Under what condition(s) should each one be used?
2. Last year, 12 employees from a computer company retired. Their ages at retirement are listed below. First, create a stem plot for the data. Next, find the mean retirement age. Round to the nearest year.
55 77 64 77 69 63 62 64 85 64 56 59
3. A retail store manager kept track of the number of car magazines sold each week over a 10-week period. The results are shown below.
27 30 21 62 28 18 23 22 26 28
a. Find the mean, median, and mode of newspapers sold over the 10-week period.
b. Which measure(s) of central tendency best represent the data?
c. Name any outliers.
4. Joe wants to pass his statistics class with at least a 75%. His prior four test scores are 74%, 68%, 84% and 79%. What is the minimum score he needs on the final exam to pass the class with a 75% average?
5. Nancy participated in a summer reading program. The number of books read by the 23 participants are as follows:
10 9 6 2 5 3 9 1 6 3 10 4 7 6 3 5 6 2 6 5 3 7 2
| Number of books read | Frequency |
| 1–2 | |
| 3–4 | |
| 5–6 | |
| 7–8 | |
| 9–10 |
a. Complete the frequency table.
b. Find the mean of the raw data.
c. Find the median of the raw data.
6. The chart below represents the number of inches of snow for a seven-day period.
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
| 2 | 5 | 3 | 10 | 0 | 4 | 2 |
a. Find the mean, median, and mode.
b. Which is the best measure of central tendency?
c. Remove Wednesday from the calculations. How does that impact the three measures of central tendency?
d. Describe the effect outliers have on the measures of central tendency.
7. A dealership sold 15 cars last month. The purchase price of the cars, rounded to the nearest thousand, is represented in the table.
| Purchase price | Number of cars sold |
| $15,000 | 3 |
| $20,000 | 4 |
| $23,000 | 5 |
| $25,000 | 2 |
| $45,000 | 1 |
a. Find the mean and median of the data.
b. Which measure best represents the data? Use the results to support your answer.
c. What is the outlier and how does it affect the data?
8. What do the letters represent on the box plot?
9. The test scores from a math final exam are as follows:
64 85 93 55 87 90 73 81 86 79
a. Create a box plot using the data.
b. Label the five points on the box plot and include numerical answers from part “a.”
10. Using the data and results from Question 9, answer the following questions.
a. What is the median?
b. What is the range?
c. What is the interquartile range?
d. In a short paragraph, describe the data in the box plot.
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.