Yes it’s 15, Thats cool man
2/3 + 5/6
= 4/6 + 5/6
= 9/6
= 3/2
A. 3/2
Answer:
Non-intelligent
Step-by-step explanation:
It is wrong so who ever solved this equation is non-intelligent
Answer:
The proportion of students whose height are lower than Darnell's height is 71.57%
Step-by-step explanation:
The complete question is:
A set of middle school student heights are normally distributed with a mean of 150 centimeters and a standard deviation of 20 centimeters. Darnel is a middle school student with a height of 161.4cm.
What proportion of proportion of students height are lower than Darnell's height.
Answer:
We first calculate the z-score corresponding to Darnell's height using:

We substitute x=161.4 ,
, and
to get:

From the normal distribution table, we read 0.5 under 7.
The corresponding area is 0.7157
Therefore the proportion of students whose height are lower than Darnell's height is 71.57%
The answer should be 42 times.