Answer:
37
Step-by-step explanation:
Given :
Sample size, n = 128
Mean, μ = 18
Standard deviation, σ = 5.4
Number of people who lost atleast 15 pounds :
The Zscore = (x - μ) / (σ)
Zscore = (15 - 18) / 5.4
Zscore = - 3 / 5.4
Zscore = - 0.5555
P(Z < - 0.555) = 0.28945
Number of people who lost atleast 15 pounds :
0.28945 * 128 = 37.0496
= 37 people
Answer:
b is the answer
Step-by-step explanation:
2*20+2*15= 70 This is the perimeter
20*15=300 This is the area.
Hope this helps :)
X=1
Explanation=
10*6 = 60
3+7+7+12+9+10+4+2+5= 59
60-59=1
