Download Things to Know If the distribution is skewed right, then the is bigger

Things to Know
1.
If the distribution is skewed right, then the ________________ is bigger than the _______________.
2.
If the distribution is skewed left, then the _________________ is bigger than the ________________.
3.
Box plots, histograms, and stemplots are used for _____________________ data.
4.
Circle graphs and bar charts are used for ___________________ data.
5.
When describing quantitative data graphs, we discuss ________________, ____________ , & ____________.
6.
With bar charts, if the sample sizes are different, use __________________________.
7.
To determine outliers, we take 1.5 IQR and add it to ______________ and subtract from ________________.
8.
To sample every 6th part is called a _____________________ sampling method.
9.
To pick ten people from each classroom is called a __________________ sampling method.
10. To sample everybody from only five classrooms is called a _______________ sampling method.
11. The types of bias are ________________, ________________, __________________, & ______________.
12. We block to _________________________________________________________.
13. A ______________________ is used for a baseline comparison.
14. We cannot assign cause & effect with an ___________________ study.
15. The ___________________ & ____________________ are affected by outliers.
16. The _____________________ tells us the number of deviations above or below the mean
17. The percentages for 1, 2, or 3 standard deviations with the empirical rules are ______, _______, & ________.
18. The ________________ ______________ is a list of all possible outcomes in a chance experiment.
19. When two sets have nothing in common they are said to be _____________ or _______________.
20. The ____________________________ states that as the number of repetitions increases, the experimental probability
approaches the theoretical probability
21. If disjoint, then the P(A and B) -= ________________
22. If Independent, then the P(A and B) = _________________
23. How do I find the P(A or B) = ___________________
24. To prove two events independent I must show that _____________________________________________.
25. Compute Mean & standard deviation:
x
P(x)
3
0.4
5
0.1
7
0.2
9
0.3
26. If event X has mean of 35 and standard deviation of 5 and event Y has mean of 20 and standard deviation 4, what is the
mean and standard deviation of 4x – 5y +6?
27. For a Binomial distribution we check for ___________, ______________, ______________, & ____________.
28. If the probability of getting a bonus is 0.22, what is the probability of at least 3 out of 4 people got a bonus?
29. Refer to #28, what is the expected number out of a group of 100 who will get a bonus?
30. If the probability of Ted getting a girl to agree to go to the prom is 0.32, what is the probability that he must ask at least 2
girls before getting a prom date?
31. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability that I
randomly select a student with an IQ that is less than 122
32. What is the probability that a sample of 50 students have a mean IQ of at least 117?
33. What is the minimum IQ score for the top 15% of students?
34. In a confidence interval, as the sample size Increases the interval gets ________________________.
35. As the level of confidence increases, the interval gets ___________________________________.
36. Interpret a 95% level. ___________________________________________________________________.
37. How many do we need to sample in order to be 92% confident that the true proportion is within 3%.
38. What is the p-Value? _____________________________________________________________________.
39. They hypotheses are statements about the _______________________________________
40. Describe a Type I error and a Type II error. _______________________________________________
41. The amount of variation in the y-variable that can be explained by LSRL is called _____________________.
42. The strength of a relationship is called the __________________________________________.
43. The amount of change in the y-variable for every addition unit of the x-variable is the ________________.
44. The _______________ is the y-variable when the x-variable is 0.
45. The difference between the observed y value and the predicted y value is the ________________________.
46. The typical deviation is the y-variable from the LSRL is the ________________________________.
47. Know the Assumptions & how to run the hypotheses tests and confidence intervals.
48. The df for tests on slope are __________________ while the rest are _________________
49. Chi Square is always a _____________ tailed test.
50. When performing a chi square test, although it’s a test of proportions, you use the ______________ in the formula.
51. The Chi square Goodness of Fit is the only chi square test that requires that you state the _____________
52. For a test of independence or homogeneity, to find the expected value you ________________________.
53. The average deviation from the mean is called the ____________________________________