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M is a subset of u.
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Solution: We are given:
μ=3.1,σ=0.5,n=50
We have to find P(Mean <2.9)
We need to first find the z score
z= (xbar-μ)/(σ/sqrt(n))
=(2.9-3.1)/(0.5/sqrt(50))
=(-0.2)/0.0707
=-2.83
Now we have to find P(z<-2.83)
Using the standard normal table, we have:
P(z<-2.83)=0.0023
Therefore the probability of the sample mean being less the 2.9 inches is 0.0023
Look at the original equation. 6x9=54. all you are doing is switching numbers up. 54/9=6. or 54/9=6.
Answer:
52.8 m. sq.
Step-by-step explanation:
2.6 x 1.5 + 1.5 (3) = 7.8 / 2 = 3.9 x 2 = 7.8 (Triangles)
3 x 5 = 15 x 2 = 30 (Side Rectangles)
5 x 1.5 + 1.5 (3) = 15
15 + 30 + 7.8 = 52.8 m. sq.
Hope this helps!
If something is wrong, please let me know.
I really wish I could help better quizás sí le preguntas a alguien +
