Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: One Variable Data |
Grade: 1300-a Lesson: S4-L1 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
Step | Type | Explanation | Answer |
---|---|---|---|
1 |
Problem |
The mean score of 8 players in a basketball game was 14.5 points. If the highest individual score is removed, the mean score of the remaining 7 players becomes 12 points. What was the highest score? |
|
2 |
Step |
Let’s denote the highest score as x: |
|
3 |
Step |
The mean score of 8 players in a basketball game is |
14.5 points |
4 |
Step |
The highest individual score is removed, the mean score of the remaining 7 players becomes |
12 points |
5 |
Step |
Calculate total points: |
\$8 \times 14.5\$ = 116 |
6 |
Step |
Calculate total points without the highest score: |
\$7 \times 12\$ = 84 |
7 |
Step |
Find the highest score: |
x = 116 - 84 x = 32 |
8 |
Step |
So, the solution is that the highest score was 32 points. |
|
9 |
Choice.A |
If the highest score were 20 points, then the total points scored by all 8 players would be \$8 \times 20 = 160\$. However, this contradicts the given mean score of 14.5 points for all 8 players |
20 |
10 |
Choice.B |
If the highest score were 24 points, then the total points scored by all 8 players would be \$8 \times 24 = 192\$. Again, this contradicts the given mean score of 14.5 points for all 8 players |
24 |
11 |
Choice.C |
As we’ve calculated previously if the highest score were 32 points, then the total points scored by all 8 players would be \$8 \times 32 = 256\$. This fits with the given mean score of 14.5 points for all 8 players, satisfying the conditions of the problem |
32 |
12 |
Choice.D |
If the highest score were 36 points, then the total points scored by all 8 players would be \$8 \times 36 = 288\$. This also contradicts the given mean score of 14.5 points for all 8 players |
36 |
13 |
Answer |
Option |
C |
14 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
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