The mean and standard deviation height (in cms) for fifty girls in year 10 at a particular school are 164.3 and 7.49 respectively. The mean height for thirty-six boys is 173.5 cm.
If 4 boys of the 36 boys in year 10, are shorter than the mean height for girls find the standard deviation of the boys’ heights. Assume all heights are normally distributed.

Question

The mean and standard deviation height (in cms) for fifty girls in year 10 at a particular school are 164.3 and 7.49 respectively. The mean height for thirty-six boys is 173.5 cm.  
If 4 boys of the 36 boys in year 10, are shorter than the mean height for girls find the standard deviation of the boys’ heights. Assume all heights are normally distributed.

anonymous · Answer

Ijust cant do it

agreene · Answer

there is no question in this statement.

However, I would like to note that statistically it is impossible for someone to be any specific height since it is a continuous variable.

anonymous · Answer

It dose " find the standard deviation of the boys’ heights"

agreene · Answer

just tell your prof you refuse to do this because length (height) is a continuous variable and therefore this problem is statistically invalid.

anonymous · Answer

Yes but i would still like to know how to solve this type of problome :D

anonymous · Answer

Even if it is worded wrong

agreene · Answer

I'm sorry but i just cant do anything with this, it just doesnt make any sense and it isn't even a vaild question to ask you.

anonymous · Answer

Lol tnx, i feel the same thats why i asked lol