Question

the table shows the number of yards a football player runs in each quater of a game find the mean number of yards the player runs per quarter

Answer 1

We know the number of yards run per quarter:

• Quarter 1: -2 yards
• Quarter 2: 14 yards
• Quarter 3: -18 yards
• Quarter 4: -6 yards

`\text{Mean number of yards run} = \frac{\text{Sum of yards run across quarters}}{\text{Total number of quarters}}`

Sum of yards run across quarters = (-2) + 14 + (-18) + (-6) = -12

Total number of quarters = 4

⇒
`\text{Mean number of yards run} = \frac{\text{Sum of yards run across quarters}}{\text{Total number of quarters}}`

⇒
`\text{Mean number of yards run} = (-12)/(4)` = -3

Hence, he ran -3 yards per quarter