Given
Mean = 6.625
Standard Deviation = 1.9
Values within 1 standard deviation of mean, mean:
[tex]\begin{gathered} 6.625-1.9<em>We look at the number of values at 5, 6, 7, and 8.</em>
<em />
<em>5 = 2 people</em>
<em>6 = 2 people</em>
<em>7 = 5 people</em>
<em>8 = 3 people</em>
<em />
Total = 2 + 2 + 5 + 3 = 12 people
<h2>Answer</h2>
C
The answer would be x=5 or x=9
Answer:
Zack = x
Tony = x + 6
x + x + 6 = 42
2x + 6 = 42
2x = 36
x = 18
So,
Zack = x = 18
Tony = x + 6 = 18 + 6 = 24