Average = (2 + 6 + 7 + 10 + 10)/5 = 35/5 = 7
x - mean, square.
2 - 7 = -5, -5² = 25
<span>6 - 7 = -1, -1² = 1
</span>
<span>7 - 7 = 0, 0² = 0
</span>
<span>10 - 7 = 3, 3² = 9
</span>
<span>10 - 7 = 3, 3² = 9
</span>
Sum of square = 25 + 1 + 0 + 9 + 9 = 44
Variance = 44/5 = 8.8
Standard deviation = √variance = √8.8 ≈ 2.966
Answer:
x = 2.5
Step-by-step explanation:
The arc length x is calculated as
x = circumference of circle × fraction of circle
= 2πr ×
( cancel 2π on numerator/ denominator )
x = 1 × 2.5 = 2.5
well, 26+6 is 32, so divide that by 3 and you'd get 10.67, making daniel 32 by that time and his son being 10 years old
its simple math really, also, i hope this helps you ^-^
Turnover is your answer. I hope this helped!