MATH108x End of Semester Summary REVIEW
Mindi purchased a redwood bench kit from a lumber store. Later her husband asked the cost of the redwood bench kit. Mindi said, "I don't remember, but the total bill was $258.52, including 5% sales tax." What was the cost of the redwood bench kit before sales tax? (Round your answer to the nearest cent, and don't include the dollar sign in your answer.)Heather recorded her heart rate (in beats per minute) after working out for several workouts. The rates were 124, 135, 124, 132, 82, 131, and 138 beats per minute, respectively. Which of the following is the best representation of Heather's typical heart rate after working out? 124 beats per minute 123 beats per minute 132 beats per minute 125 beats per minute 131 beats per minuteThe Nielson family is using the Quantitative Reasoning Process to set up a monthy budget. They have a monthly income of $5,188. In June, their monthly expenses were $3,440, their monthly state and federal taxes totaled $791, and they contributed $875 to their savings plan. What was the Nielson's monthly cash flow for June? $570 (Their income is a lot more than they are spending and saving.) O -$82 (Their income is a little less than they are spending and saving. They are going into debt) -$570 (Their income is a lot less than they are spending and saving. They are going into debt) $0 (Their income is exactly the same amount as they are spending and saving.) O $82 (Their income is a little more than they are spending and saving.)Which of the following must be true if Juan scored in the 61th percentile on his last math exam? O Juan scored as well or worse than 61% of the other students who took the same math exam. O Juan answered 61% of the exam questions correctly. O There were 61% of the exam questions that Juan could not figure out. O Juan failed the exam and will likely be taking the math class over again. O Juan scored as well or better than 61% of the other students who took the same math exam.What is wrong with the following graph? Last week, we asked whether A levels are becoming harder to pass. You said: Yes 50% No 49% A pie chart is not an appropriate graph for this type of data. It should be a time series plot instead. O The areas do not add up to 100% and are not proportioned correctly. O A pie chart is not an appropriate graph for this type of data. It should be a scatterplot instead. The answers of yes and no do not apply to the question being asked. O The pie chart depicts redundant information, rather than just showing what is needed.Mr. Gustafson is a 6th grade science teacher. After grading the first two exams in his class, he computed the mean and standard deviation for each exam. Mean Exam Score Standard Deviation of Exam Scores Exam 1 79 5.5 Exam 2 91 3.3 Which of the following best describes what the standard deviation tells Mr. Gustafson about the exams? The scores on Exam 1 were more consistent than the scores on Exam 2. The scores on Exam 1 were all higher than the scores on Exam 2. The scores on Exam 1 were better at measuring learning than the scores on Exam 2. The scores on Exam 1 were more spread out than the scores on Exam 2. The scores on Exam 1 were all lower than the scores on Exam 2
