Lab Report On Marine Shells

1. For the following scores, find the mean, median, and the mode. Which would be the most appropriate measure for this data set?

The lab uses the measurements of a wooden dowel in length and diameter to collect data in order to interpret data in report form. The data is used to produce statistical data and how to correctly present it. A ruler and micrometer were used to measure the dimensions. Spreadsheets are then constructed in order to generate standard deviation, mean, median, mode, frequency, as well as variation of length, diameter, volume, and cross sectional area of the

5. Give the standard deviation for the mean and median column. Compare these and be sure to identify which has the least variability?

Weight 10 dry post-82 pennies which get 77.12g, using 30ml initial volume measuring the volume of 10 pennies, record the data 9.1ml. Using equation Density= Mass/Volume, get the density of the pre-82 pennies is 8.47g/ml. Then calculate the error%=0.04%, and the deviation%=7.13%.

5. Give the standard deviation for the mean and median column. Compare these and be sure to identify which has the least variability?

Question 4: The mode is the most frequently occurring value in a set of data so here the mode is 178 so the answer is e.

Introduction: Accuracy and precision were the major aspects of the lab. Accuracy is how close the average of the measured values are to the actual value. Precision is the closeness of repeated measurements. In the lab, the aim was to get as close as possible with both accuracy and precision when determining the mass and volume of the spheres. The mass was determined by weighing the spheres on the Analytical Scale and Triple Beam Balance Scale. The volume is determined by measuring with a ruler and by water displacement. The standard

1. What unit of measurement is used to describe how far a set of values are from the mean? 2. Explain how to standardize a value. 3. Briefly describe why standardized units are used to compare values that are measured using different scales, different units, or different populations. 4. How does adding or subtracting a constant amount to each value in a set of data affect the mean? Why does this happen? 5. How does multiplying or dividing a constant amount by each value in a set of data (also called rescaling) affect the mean? Why does this happen? 6. How does adding or subtracting a constant amount to each value in a set of data affect the standard deviation? Why does this happen? 7. How does multiplying or dividing a constant amount by each value in a set of data (also called rescaling)

8. Analyze: How does the standard deviation relate to the consistency and range of a data set?

Based on the given sample of student test scores of 50, 60, 74, 83, 83, 90, 90, 92, and 95 after rearranging them from least to greatest. As the mean is based on the average of sum, the average of this sample is 79.67 or 80. The mode refers to numbers that appear the most in a sequence and in this case 83 and 90 both appear twice. Range calculates the difference between the largest and smallest number, which are 95 and 50 which have a difference of 45. The variance is the difference between the sum of squares divided by the sample size, which is the number in the sample minus one (Hansen & Myers, 2012), meaning it takes each number of the set and subtracts

Two additional variables (Volume and Density) were created from the dataset’s original observational variables. The data variable, volume, is a product of multiplying abalone length, diameter, and height. Similarly, the data variable, density, is a product of dividing abalone weight (i.e. the variable ‘whole’) by volume.

In this project we were given the case of customer complaints that the bottles of the brand of soda produced in our company contained less than the advertised sixteen ounces of product. Our boss wants us to solve the problem at hand and has asked me to investigate. I have asked my employees to pull Thirty (30) bottles off the line at random from all the shifts at the bottling plant. The first step in solving this problem is to calculate the mean (x bar), the median (mu), and the standard deviation (s) of the sample. All of those calculations were easily computed in excel. The mean was computed by entering:

Based on the chart, the mean was calculated by adding up the sum of the list and divide 18, which the number of the total listed prices. The mean is 135,000, which mean the average of the listed price. Secondly, the median was calculated by listing the number in numerical order from lowest to highest and located the number in the middle 126,000. The median represents the middle number of the listed price. After calculating the median I located the minimum and maximum based the lowest and highest data, which are 48,000 and 338,000. These represent the range of the listed price. Lastly, I used the formula to get the

I have placed the results from our experiment in form of a table and will use the average results to form a graph. I have also prepared a graph to show the results throughout the exercise.

5. The arithmetic mean is only measure of central tendency where the sum of the deviations of each value from the mean will always be zero