7. Select all that apply: Consider the linear decision boundary below and the dataset shown. Which of the following are valid weights and their corresponding error on this dataset? (Note: Assume the decision boundary is fixed and does not change while evaluating error.) □0 = [-2, 1], error = 5/13 □0 = [2,-1], error = 8/13 0 = [2, -1], error = 5/13 □ 0 = [-2, 1], error = 8/13 None of the above. + + + 2 -2 + + X || +

A good truck did a daily a survey of customers to find their food preferences. The data is partially entered in the frequency table complete the table to analyze the data and answer the questions: part a: what percentage of the survey respondents do not like both of hamburgers and burritos? Part b: what is the marginal relative frequency of all customers that like hamburgers? Part c: use the conditional relative frequency to determine what state of Point has strongest Association of its two factors. Use complete sentences to explain your answer.

Determine whether r is positive, negative, or zero for each of the following data sets. Ⓡ Ⓡ op bas (a) For the data in scatterplot (a), the value of r is For the data in scatterplot (b), the value of r is For the data in scatterplot (c), the value of r is (b) zero. negative. positive. (c) Q

O O O Less than 8 8. A sample of 400 Goshen households is selected and several variables are recorded. Which of the following statements is correct? * O Total household Income is a ratio level data. Socioeconomic status (recorded as "low income", "middle income", or "high income" is nominal level data. O The number of people living in a household is a continuous variable. O The primary language spoke in the household is ordinal level data.