Stats milestone 3 - Study guides, Class notes & Summaries

Sandy Hook Case Study - 20 yr old Adam Lanza killed 20 children + 6 teachers - Was introduced to firearms at local firing ranges by his mom - Adam had several emotional and behavioural issues, along with disorders including the inability to feel pain - Showed evidence of developmental abnormalities by the age of 3 (repetitive behaviours, rigid thought processes, communication issues, low eye contact, low empathy, hypersensitivity to sensory stimuli) - Diagnosed with Asperger's syndrome at ...

Stats milestone 3 Exam With Questions And Answers...

Sophia Intro to Stats Unit 3 Milestone 3.Which of the following is a property of binomial distributions? All of the observations made are dependent of each other. There are exactly four possible outcomes for each trial. The expected value is equal to the number of successes in the experiment. The variable of interest is the total number of successes or failures for a given number of observations. RATIONALE Recall that for the binomial distribution we are concerned with an event occurring (succes...

Sophia Intro to Stats Unit 3 Milestone 3.Which of the following is a property of binomial distributions? All of the observations made are dependent of each other. There are exactly four possible outcomes for each trial. The expected value is equal to the number of successes in the experiment. The variable of interest is the total number of successes or failures for a given number of observations. RATIONALE Recall that for the binomial distribution we are concerned with an event occurring (succes...

Sophia Intro to Stats Unit 3 Milestone 3,..pdf

Sophia Intro to Stats Unit 4 Milestone 4.For ten students, a teacher records the following scores of two assessments, Quiz 1 and Test. Quiz 1 (x) Test (y) 15 20 12 15 10 12 14 18 10 10 8 13 6 12 15 10 16 18 13 15 Mean 11.9 14.3 Standard Deviation 3.3 3.5 The correlation of Quiz 1 and Test is 0.568. Given the information below, what is the slope and y-intercept for the least-squares line of the Quiz 1 scores and Test scores? Answer choices are rounded to the hundredths place. Slope = 0.54 y-inter...

Sophia Intro to Stats Unit 3 Milestone 3,..pdf

Sophia Intro to Stats Unit 5 Milestone 5.What value of z* should be used to construct a 97% confidence interval of a population mean? Answer choices are rounded to the thousandths place. 1.65 1.88 1.96 2.17 RATIONALE Using the z-chart to construct a 97% CI, this means that there is 1.5% for each tail. The lower tail would be at 0.015 and the upper tail would be at (1 - 0.015) or 0.985. The value of 0.9850 is actually on the z-table exactly. 0.9850 corresponds with a z-score of 2.17. CONCEPT Conf...

Which of the following is a property of binomial distributions? All of the observations made are dependent of each other. There are exactly four possible outcomes for each trial. The expected value is equal to the number of successes in the experiment. The variable of interest is the total number of successes or failures for a given number of observations. RATIONALE Recall that for the binomial distribution we are concerned with an event occurring (successes) or not occurring (failures) in...