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Updated on: 28 Nov 2024, 23:16
Originally posted by harshpurohit3700 on 26 Nov 2024, 03:48.
Last edited by harshpurohit3700 on 28 Nov 2024, 23:16, edited 1 time in total.
Last edited by harshpurohit3700 on 28 Nov 2024, 23:16, edited 1 time in total.
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Every student whose entrance exam score was below average had an above-average number of first-year errors.: No
Exactly half of the students who had an above-average number of first-year errors had a final rating of 4.: Yes
More than 50% of students who had a below-average number of first-year errors had final ratings of 3 or 4.: Yes
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
76% (02:20) correct
24%
(02:46)
wrong
based on 450
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For each of 13 students who completed a vocational training program in the health-care field, the table provides the student's score on the program's entrance exam; the student's final rating upon completing the program, where a lower rating corresponds to better performance; and the number of documented errors during the student's first year of employment in the health-care field. The average (arithmetic mean) in each category is rounded to the nearest 0.1.
For each of the following statements, select Yes if it is true based on the information provided; otherwise, select No.
| Student number | Entrance exam score | Final rating | Number of first-year errors |
|---|---|---|---|
| 01 | 99 | 2 | 16 |
| 02 | 73 | 4 | 18 |
| 03 | 82 | 4 | 0 |
| 04 | 90 | 1 | 6 |
| 05 | 73 | 4 | 12 |
| 06 | 98 | 1 | 8 |
| 07 | 87 | 1 | 12 |
| 08 | 82 | 4 | 12 |
| 09 | 80 | 3 | 17 |
| 10 | 90 | 3 | 3 |
| 11 | 85 | 4 | 16 |
| 12 | 86 | 3 | 5 |
| 13 | 88 | 2 | 13 |
| Average | 85.6 | 2.8 | 10.6 |
Attachment:
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Official Test-6_DI question.png [ 163.14 KiB | Viewed 2535 times ]
For each of the following statements, select Yes if it is true based on the information provided; otherwise, select No.
| Yes | No | |
| Every student whose entrance exam score was below average had an above-average number of first-year errors. | ||
| Exactly half of the students who had an above-average number of first-year errors had a final rating of 4. | ||
| More than 50% of students who had a below-average number of first-year errors had final ratings of 3 or 4. |
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Official Answer
Every student whose entrance exam score was below average had an above-average number of first-year errors.: No
Exactly half of the students who had an above-average number of first-year errors had a final rating of 4.: Yes
More than 50% of students who had a below-average number of first-year errors had final ratings of 3 or 4.: Yes
26 Nov 2024, 10:18
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1. We are asked to check whether the statements are true or false.
2. Every student whose entrance exam score was below average had an above-average number of first-year errors. This is not true for Student 3, who has a below-average exam score (82 < 85.6) and a below-average number of first-year errors (0 < 10.6). So, this statement is a no.
3. Exactly half of the students who had an above-average number of first-year errors had a final rating of 4. There are 8 students (1, 2, 5, 7, 8, 9, 11, 13) who had an above-average number of first-year errors. Students 2, 5, 8, and 11 had final ratings of 4, which is exactly half. So, this statement is a yes.
4. More than 50% of students who had a below-average number of first-year errors had final ratings of 3 or 4. There are 5 students (3, 4, 6, 10, 12) who had a below-average number of first-year errors. Students 3, 10, and 12 had final ratings of 3 or 4, which is more than half. So, this statement is a yes.
2. Every student whose entrance exam score was below average had an above-average number of first-year errors. This is not true for Student 3, who has a below-average exam score (82 < 85.6) and a below-average number of first-year errors (0 < 10.6). So, this statement is a no.
3. Exactly half of the students who had an above-average number of first-year errors had a final rating of 4. There are 8 students (1, 2, 5, 7, 8, 9, 11, 13) who had an above-average number of first-year errors. Students 2, 5, 8, and 11 had final ratings of 4, which is exactly half. So, this statement is a yes.
4. More than 50% of students who had a below-average number of first-year errors had final ratings of 3 or 4. There are 5 students (3, 4, 6, 10, 12) who had a below-average number of first-year errors. Students 3, 10, and 12 had final ratings of 3 or 4, which is more than half. So, this statement is a yes.
26 Nov 2024, 17:47
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