An analysis of 50 train derailment incidents identified the main causes listed​ below, where T denotes bad​ track, E denotes faulty​ equipment, H denotes human​ error, and O denotes other causes. Construct a frequency​ table, and include a column for relative frequencies expressed as percentages. What was the most common cause of​ derailment?   T T T E T H E T T O H T H H T T T O E E H T T O H   O T T E T T E E T E O T E T H T T T T H T H O O E         Complete the table. ​(Type integers or decimals rounded to the nearest tenth as​ needed.) Cause Frequency Relative frequency Bad Track nothing nothing​% Faulty Equipment nothing nothing​% Human Error nothing nothing​% Other nothing nothing​%

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Here is a frequency table of weekly rent ($) paid by international university students:     Weekly rent ($) Frequency (0, 120] 16 (120, 240] 6 (240, 360] 17 (360, 480] 6 (480, 600] 17                       How many students in this sample paid less than or equal to $480 per week in rent? Please do NOT include units in your answer.

In a student survey, forty-one part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answer to 4 decimal places for the Relative Frequency if possible. # of Courses Frequency Relative Frequency Cumulative Frequency 1 15 0.3659 15 2 12 0.2927   ? 3   ?    ? 41  What percent of students take exactly one courses          ? %

Consider the following partially filled frequency table: Value Frequency 0.5 1.0 2.9 Calculate the mean (to 2 d.p.). Cumulative Relative Frequency Frequency 0.2 39 100

The following data show the ages of recent award-winning male actors at the time when they won their award. Make a frequency table for the data, using bins of 20-29, 30-39, and so on. Click the icon to view the ages of male actors. Complete the table below. Age 20-29 30-39 40-49 50-59 60-69 70-79 No. of actors ☐☐☐☐☐☐ Data table 20 54 34 41 50 59 48 34 31 65 44 28 79 49 48 34 59 59 34 44 48 31 43 35 63 58 35 49 41 77 43 C 57 30 38 D - X

Students were asked what grades they usually get in school. For twelfth-grade students who responded to this question and the question about how often they wear seatbelts when driving, a summary of frequency counts for combinations of responses to the two questions is as follows. WearsSeatbelt Usual School Grades   A and B C D and F Total   Never 55 40 17 112   Rarely 129 95 21 245   Sometimes 168 109 9 286   Most times 290 129 25 444   Always 1,059 305 50 1,414 Total   1,701 678 122 2,501 (a) The total number of students in the table is 2,501. What percentage of these 2,501 students said that they usually get A's and B's in school? (Round your answer to one decimal place.) % (b) What percentage of the 1,701 students who said that they usually get A's and B's said that they always wear a seatbelt when driving? (Round your answer to one decimal place.) % (c) What percentage of the 678 students who said that they usually get C's said that they always wear a…

The following data show the ages of recent award-winning male actors at the time when they won their award. Make a frequency table for the data, using bins of 20-29, 30-39, and so on. Click the icon to view the ages of male actors. Complete the table below. Age No. of actors Data Table 20-29 30-39 40-49 36 53 23 67 53 56 48 39 49 52 50-59 37 49 50 46 31 42 65 57 73 33 60-69 53 41 31 49 41 35 39 46 48 34 70-79 35 63 42 37 Print Done

Consider the following frequency table representing the distribution of cost of a paperback book (in dollars). 7. Cost of a Paperback Book (in Dollars) Frequency Class 6.1-7.0 11 7.1-8.0 14 8.1-9.0 3 9.1- 10.0 10 10.1-11.0 4 Determine the class width of each class.

In a student survey, forty-one part-time students were asked how many courses they were taking t The (incomplete) results are shown below: Please round your answer to 4 decimal places for the Relative Frequency if possible. # of Courses Frequency Relative Frequency Cumulative Frequency 1 12 12 0.3415 26 3 15 0.3659 What percent of students take exactly one courses? Submit Question M. Chp -> Ca 2$ & 3. 4. 7 8 9. y d f g 13 <6