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25 Apr 2026, 22:42
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Removing Soto's statistics from the table would reduce the standard deviation of the goals scored: TRUE
Removing Machado's statistics from the table would have no impact on the standard deviation of the games played: FALSE
If the centers' goals scored statistics are removed from the list, the standard deviation of the goals scored decreases: FALSE
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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The following table shows a season's performance of some members of a certain hockey team
For each of the following statements, select True if the statement is true based on the information provided. Otherwise, select False.
| Player | Position | Games Played | Goals Scored |
|---|---|---|---|
| Alvarez | Wing | 67 | 79 |
| Betts | Wing | 46 | 55 |
| Cronenworth | Center | 74 | 61 |
| Franco | Wing | 47 | 76 |
| Guerrero | Center | 45 | 61 |
| Machado | Wing | 55 | 54 |
| Rizzo | Wing | 66 | 87 |
| Soto | Wing | 24 | 14 |
| Trout | Center | 71 | 62 |
| Average (mean) | - | 55 | 61 |
For each of the following statements, select True if the statement is true based on the information provided. Otherwise, select False.
| TRUE | FALSE | Statements |
| Removing Soto's statistics from the table would reduce the standard deviation of the goals scored | ||
| Removing Machado's statistics from the table would have no impact on the standard deviation of the games played | ||
| If the centers' goals scored statistics are removed from the list, the standard deviation of the goals scored decreases |
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Official Answer
Removing Soto's statistics from the table would reduce the standard deviation of the goals scored: TRUE
Removing Machado's statistics from the table would have no impact on the standard deviation of the games played: FALSE
If the centers' goals scored statistics are removed from the list, the standard deviation of the goals scored decreases: FALSE
26 Apr 2026, 04:37
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The following table shows a season's performance of some members of a certain hockey team
For each of the following statements, select True if the statement is true based on the information provided. Otherwise, select False.
Standard deviation measures how spread out a set of values is. A smaller standard deviation means the values are clustered more closely around the mean, while a larger standard deviation means the values are more spread out from the mean.
• Removing Soto's statistics from the table would reduce the standard deviation of the goals scored
The mean of goals scored is 61, and Soto scored only 14, which is very far from the mean. Since Soto is a clear low outlier, removing him makes the remaining goal totals less spread out, so the standard deviation decreases.
Answer: True
• Removing Machado's statistics from the table would have no impact on the standard deviation of the games played
The mean of games played is 55, and Machado has exactly 55. So removing him changes the standard deviation: the distribution becomes more spread out, and the standard deviation increases.
Answer: False
• If the centers' goals scored statistics are removed from the list, the standard deviation of the goals scored decreases
The centers scored 61, 61, and 62 goals, which are extremely close to the mean of 61. These values actually make the data less spread out. If we remove them, the remaining goal totals are relatively more scattered, so the standard deviation increases, not decreases.
Answer: False
| Player | Position | Games Played | Goals Scored |
|---|---|---|---|
| Alvarez | Wing | 67 | 79 |
| Betts | Wing | 46 | 55 |
| Cronenworth | Center | 74 | 61 |
| Franco | Wing | 47 | 76 |
| Guerrero | Center | 45 | 61 |
| Machado | Wing | 55 | 54 |
| Rizzo | Wing | 66 | 87 |
| Soto | Wing | 24 | 14 |
| Trout | Center | 71 | 62 |
| Average (mean) | - | 55 | 61 |
For each of the following statements, select True if the statement is true based on the information provided. Otherwise, select False.
Standard deviation measures how spread out a set of values is. A smaller standard deviation means the values are clustered more closely around the mean, while a larger standard deviation means the values are more spread out from the mean.
• Removing Soto's statistics from the table would reduce the standard deviation of the goals scored
The mean of goals scored is 61, and Soto scored only 14, which is very far from the mean. Since Soto is a clear low outlier, removing him makes the remaining goal totals less spread out, so the standard deviation decreases.
Answer: True
• Removing Machado's statistics from the table would have no impact on the standard deviation of the games played
The mean of games played is 55, and Machado has exactly 55. So removing him changes the standard deviation: the distribution becomes more spread out, and the standard deviation increases.
Answer: False
• If the centers' goals scored statistics are removed from the list, the standard deviation of the goals scored decreases
The centers scored 61, 61, and 62 goals, which are extremely close to the mean of 61. These values actually make the data less spread out. If we remove them, the remaining goal totals are relatively more scattered, so the standard deviation increases, not decreases.
Answer: False
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