Numeric Summaries Use the formulas for grouped data and the frequency distribution created in question 3 to estimate the mean and the standard deviation of the selected variable.  Embed images of the work process that support your computations.

A) Let x represent a randomly selected number between the minimum and maximum values in #1; a and b represent the same values selected for #3.  Explain why x represents a continuous random variable. Copy and paste the provided chart into the answer field below. Verbal Statement Symbolic Statement using z-scores (Part B) Probability (Part C) the probability x is no more than a the probability x is at least b the probability x is between a and b B) Assume that the monthly milk production of Holstein cows is normally distributed, with the mean and standard deviation as determined ini #1A). Translate each verbal statement into symbolic form using z-scores. Enter your response into the copied chart using correct mathematical notation. C) Use the tool of your choice to determine the probabilities in the statements in part B). If using StatCrunch, select Stat CalculatorsNormal.  Then, setting the mean to 0 and standard deviation to 1, determine the probabilities for the statements in part B).  Enter the probability, correct to four decimal places, into the copied chart.  Download the result and save as an image to your device. Embed the images as support for the submitted probabilities. D) It is very unlikely that the probability found in #4C) are exactly the same as those found in #3. Explain why these differences exist.

A) Use the available tools to create the Summary statistics for the monthly milk production values in the chart. Copy and paste the provided chart into the answer field and then insert the values generated in Excel OR StatCrunch. Summary statistics: Column n Mean Variance Std. dev. Median Range Min Max Q1 Q3 Monthly Milk Production B) Create a histogram to display the data in the chart. Set the starting bin value as 1100 and enter a bin width that will generate between 5 and 10 classes. Download the histogram and save the image to your device. Embed the image into the answer field below. C) Based on the shape of the histogram alone, do you think it is appropriate to apply the Empirical Rule? Explain your answer. D) Use the results of the histogram in part B) to create a frequency distribution for the given data set. Copy and paste this provided chart to enter your results. If you have fewer than ten classes, just leave the lower lines of the cart empty. Class Boundaries Frequency                     

Which is NOT an example of a visual aid?

Match the graphic type with the example.

Which is NOT an example of an online database?

Review the variables and scan the responses. For each of the measures of center (mean, median,mode), identify a variable that would be best represented by the measure. Determine the measure and explain why it is the best summary option for the selected variable.

Organization and Presentation a) Create a frequency distribution for the selected variable.  Present the frequency distribution, with all appropriate labels, in the provided answer field as an embedded image. b) Create the histogram that displays the frequency distribution in part a). Present the histogram, with all appropriate labels, in the answer field as an embedded image. c) Create a boxplot for the selected variable and identify the five-number summary. Present the boxplot and five number summary, with all appropriate labels, in the answer field as an embedded image. d) Based on the results of parts a) – c), do you think the mean is the best measure of central tendency for the selected variable? Explain why or why not?  

When using a live proctor, how would you rate your interaction with your proctor?

For questions 3 and 4, select a variable from calories, sodium, potassium, or rating to use in both questions.