Answer:
I think its (6,8) if im wrong i will write the correct answer here or i will right it in the comments
Step-by-step explanation:
Correct Answer:Option A. 0.01
Solution:This is a problem of statistics and uses the concept of normal distributions. We need to convert the score of 90 into z-score and then find the desired probability from standard normal distribution table.
Converting 90 to z-score:
Now we are to find the probability of z score being more than 2.33. From the z-table the probability comes out to be 0.01.
Therefore, we can conclude that the probability of class average is greater than 90 is 0.01.
Answer:
<h2>x = 8</h2>
Step-by-step explanation:
<em>Look at the picture</em>.
ΔABC and ΔACD are similar. Therefore corresponding sides are in proportion:
We have
Substitute:
<em>cross multiply</em>
U can look online there are apps that give u the answers or look on safari!