Answer: 0.0142
Step-by-step explanation:
Given : The mean height of women in a country (ages 20 - 29) is 64.2 inches.
i.e. 
Also, 
Sample size : n= 50
Let x denotes the height of women.
Then, the probability that the mean height for the sample is greater than 65 inches :-
![P(x>65)=1-P(x\leq 65)\\\\=1-P(\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}\leq\dfrac{65-64.2}{\dfrac{2.58}{\sqrt{50}}})\\\\=1-P(z\leq2.193)\ \ [\because z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}]\\\\=1-0.9858463\ \ [\text{By using z-value table or calculator}]\\\\=0.0141537\approx0.0142](https://tex.z-dn.net/?f=P%28x%3E65%29%3D1-P%28x%5Cleq%2065%29%5C%5C%5C%5C%3D1-P%28%5Cdfrac%7Bx-%5Cmu%7D%7B%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D%5Cleq%5Cdfrac%7B65-64.2%7D%7B%5Cdfrac%7B2.58%7D%7B%5Csqrt%7B50%7D%7D%7D%29%5C%5C%5C%5C%3D1-P%28z%5Cleq2.193%29%5C%20%5C%20%5B%5Cbecause%20z%3D%5Cdfrac%7Bx-%5Cmu%7D%7B%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D%5D%5C%5C%5C%5C%3D1-0.9858463%5C%20%5C%20%5B%5Ctext%7BBy%20using%20z-value%20table%20or%20calculator%7D%5D%5C%5C%5C%5C%3D0.0141537%5Capprox0.0142)
Hence, the the probability that the mean height for the sample is greater than 65 inches = 0.0142
3x9=27 or 27x1=27 hope that's useful
913,610 it is the same number because 0 is less than 5 so you don't have to round the tens place up by one
Answer:
Hello!
~~~~~~~~~~~~~~~
3^x+x³=17
= x = 2
Step-by-step explanation: Graph each side of the equation. The solution is the x - value of the point of intersection.
Hope this helped you! Brainliest would be nice! ❤︎
Answer:
an obtuse angle is greater than 90 and if you think about it 90 plus 90 equals. 180 so if you had two obtuse angles both greater than 90 you would have more than 180 degrees. so the answer for how many angles. of two are in an obtuse triangle is one right here.
