Answer:
3 x 15
Step-by-step explanation:
aren't you trying to figure out what the expression is simplified?
If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
![z=\frac{173-154}{29}=0.655](https://tex.z-dn.net/?f=z%3D%5Cfrac%7B173-154%7D%7B29%7D%3D0.655)
Referring to a standard normal distribution table, and using z = 0.66, we find:
![P(\bar x\ \textless \ 173)=0.7454](https://tex.z-dn.net/?f=P%28%5Cbar%20x%5C%20%5Ctextless%20%5C%20173%29%3D0.7454)
Therefore
![P(\bar x\ \textgreater \ 173)=1-0.7454=0.2546](https://tex.z-dn.net/?f=P%28%5Cbar%20x%5C%20%5Ctextgreater%20%5C%20173%29%3D1-0.7454%3D0.2546)
The answer is: 0.2546
question 1 is congruent. 2 is not congruent and 3 is congruent
Step-by-step explanation: It should be the second answer.
Answer:
B) -7
Step-by-step explanation:
since since since there is more of the negative number then the positive number, the positive number gets canceled out.