Choose the correct answer. To receive credit, you must explain your choice and submit in Exam 3 Part B.  If a score is in the 35th percentile, what does this mean?  On your paper, explain your choice.

Fill in the blanks. To receive credit, you must show all your work and submit in Exam 3 Part B. A random sample of 20 teachers is selected. The following list gives their ages:30, 41, 61, 46, 54, 22, 30, 60, 43, 56, 26, 37, 61, 54, 27, 43, 56, 29, 34, 49 a. Describe how to read a stem-and-leaf entry and give an example. Answer on your paper. b. Construct a stem-and-leaf plot for the data. Separate numbers by commas and write in ascending order. STEM LEAF [a] [b] [c] [d] [e] [f] [g] [h] [i] [j]    

Fill in the blanks. To receive credit, you must show all your work and submit in Exam 3 Part B.  Use Percentiles and z-scores Table to find the percentage of data items in a normal distribution that lie a. above and b. below the given score.z = 0.3 Give percentages to two decimal places. The % sign is already written for you. a. The percentage above: [a]% b. The percentage below: [b]% Percentiles and z-Scores TABLE.pdf

Fill in the blanks. To receive credit, you must show all your work and submit in Exam 3 Part B.  A survey was conducted of 394 teenagers. Thirty-five percent of the teenagers said they occasionally smoked cigarettes. a. Find the margin of error for this survey.

Decide whether the composite functions, f ∘ g and g ∘ f, are equal to x.f(x) = , g(x) = 4x – 5

Identify which of the graphs could be the graph of a polynomial function.f(x) = x3 + 2×2 – x – 2

Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = (x +4)4

Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = (x – 3)4 + 4

Word counts from course comments are summarized in the table below. Would the likelihood of the phrase “I love data!” for instructors be higher with Laplace smoothing or without?TermStudentInstructorData7215Hate150Love4510Total10020

[4pts] The equilibrium concentration of vacancies present in a metal depends on its temperature. List two possible ways of achieving a higher-than-equilibrium concentration of vacancies.