By taking this quiz you agree to do all work without the help of other classmates.
Directions: Fill out this quiz 1 answer sheet by April 1, 2018 11:59 pm Eastern Time. Do all of your work on this answer sheet. If you must, you may include additional pages to this answer sheet; however, if you do not properly fill out this answer sheet your problems will not be graded. If you have any questions about this assignment, always feel free to ask your instructor.
- Lane Chapter 1 Question 18 Page 64: (AT) What is the dependent variable?
- The number of correct responses after taking dosages of methylphenidate (MPH).
- The number of children in receiving medication.
- The number of syringes used to administer the medication.
- There is no dependent variable.
- Lane Chapter 1 Question 18 Page 64: (AT) On what scale was it measured? Circle the correct answer(s).
nominal ordinal interval ratio
- Illowsky Chapter 1 Question 52 Page 53: The instructor’s sample produces a mean number of days absent of 3.5 days. This value is an example of a:
For questions 4-6: Illowsky Chapter 1 Question 90 Page 59: Seven hundred and seventy-one distance learning students at Long Beach City College responded to surveys in the 2010-11 academic year. Highlights of the summary report are listed in Table 1.39.
| Have computer at home | 96% |
| Unable to come to campus for classes | 65% |
| Age 41 or over | 24% |
| Would like LBCC to offer more DL courses | 95% |
| Took DL classes due to a disability | 17% |
| Live at least 16 miles from campus | 13% |
| Took DL courses to fulfill transfer requirements | 71% |
Table 1.39 LBCC Distance Learning Survey Results
- What percent of the students surveyed do not have a computer at home?
- 3%
- 4%
- 5%
- 6%
- About how many students in the survey live at least 16 miles from campus?
- 11%
- 12%
- 13%
- 14%
- If the same survey were done at Great Basin College in Elko, Nevada, do you think the percentages would be the same? Why? Type or write your your answer here: ___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
- Lane Chapter 2 Question 9 page 119: Which of the box plots on the graph has a large positive skew? Which has a large negative skew? Fill in the blank below with the letter of the plot that answers these questions.
Figure 7 Box Plot
____ Large Positive Skew ____ Large Negative Skew
- Illowsky Chapter 2 Exercise 80 page 143: Suppose one hundred eleven people who shopped in a special t-shirt store were asked the number of t-shirts they own costing more than $19 each. If data were collected by asking the first 111 people who entered the store, then the type of sampling is:
- cluster
- simple random
- stratified
- convenience
- Lane Chapter 3 Question 8 page 161: You know the minimum, the maximum, and the 25th, 50th, and 75th percentiles of a distribution. Which of the following measures of central tendency or variability can you determine? Circle all the correct answers.
| · mean · median · mode · trimean · geometric mean | · range · interquartile range · variance · standard deviation
|
| · |
For questions 10-16 : Illowsky Chapter 3 Question 112 Page 210
Table 3.22 identifies a group of children by one of four hair colors, and by type of hair.
| Hair Type | Brown | Blond | Black | Red | Totals
|
| Wavy | 20 | 15 | 3 | 43 | |
| Straight | 80 | 15 | 12 | ||
| Totals | 20 | 215 |
Table 3.22
- Complete the table.
- What is the probability that a randomly selected child will have wavy hair?
- 43/215 172/215 c. 43/172 d. 20/43
- What is the probability that a randomly selected child will have either brown or blond hair?
- 180/215 115/215 c. 120/215 d. 95/215
- What is the probability that a randomly selected child will have wavy brown hair?
- 5/43 20/215 c. 43/215 d. 20/43
- What is the probability that a randomly selected child will have red hair, given that he or she has straight hair?
- 12/172 65/215 c. 12/215 d. 15/172
- If B is the event of a child having brown hair, find the probability of the complement of B.
- 100/215 115/215 c. 172/215 d. 215/215
- In words, what does the complement of B represent?
- The probability that a child will not have red or wavy hair.
- The probability that a child will not have red or straight hair.
- The probability of a child having blonde, black, or red hair.
- B has no complement.
- Illowsky Chapter 4 Question 72 Page 286: You buy a lottery ticket to a lottery that costs $10 per ticket. There are only 100 tickets available to be sold in this lottery. In this lottery there are one $500 prize, two $100 prizes, and four $25 prizes. Find your expected gain or loss.
- Complete the table for problem 17
| X = $ net gain or loss | P(x) |
| $500 – $10 = $490 |
|
|
| |
| $0 – $10 = $-10 |
- Expected Value equals: ______________
Show work for 17b here
For 18-19: Lane Chapter 5 Question 9 Page 218: 9. A jar contains 10 blue marbles, 5 red marbles, 4 green marbles, and 1 yellow marble. Two marbles are chosen (without replacement).
- What is the probability that one will be green and the other red? (Select the correct answer and show work here.)
- 0526
- 0673
- 1052
- 4/20
- What is the probability that one will be blue and the other yellow? (Select the correct answer and show work here.)
- 0263
- 0526
- 0484
- 1/19
- Match the terms with the statements that best describe them.
| Standard deviation | A. Average of squares of the deviations. | |
| Variance | B. Numbers that separate data into quarters | |
| Outlier | C. A number that measures how far data values are from their mean. | |
| Quartiles | D. An observation that does not fit the rest of the data. |
