The standard normal curve shown here is a probability density curve for a continuous random variable. This means that the area underneath the entire curve is 1. What is the area of the shaded region between the two z-scores indicated in the diagram?

A. 0.7188
B. 0.7864
C. 0.1131
D. 0.7068
E. 0.1151

Question

The standard normal curve shown here is a probability density curve for a continuous random variable. This means that the area underneath the entire curve is 1. What is the area of the shaded region between the two z-scores indicated in the diagram?	

 		A.	0.7188
 		B.	0.7864
 		C.	0.1131
 		D.	0.7068
 		E.	0.1151

anonymous · Answer

attachment

miracrown · Answer

For this, we'll need to evaluate the normal variable distribution between -1.26 and 0.88

miracrown · Answer

For example, between -1 and 1, it will be 66% or so, between -2 and 2 it's about 95%...I can remember those off the top of my head, but for the exact value here, we need to look up a table, or in a calculator capable of this.

anonymous · Answer

can u explain what that is i dont understand

anonymous · Answer

?

miracrown · Answer

I've seen have ppl use a z-table to look up the values.
You just look up the values in a table and add them together

anonymous · Answer

so look up 1.2 and .8 and the numer they share on the table is the answer?

miracrown · Answer

Yep

anonymous · Answer

i cant find .8 on the chart it goes to .09? what do i do?!

anonymous · Answer

help! !!!!

anonymous · Answer

@geerky42 can u help me with this?

anonymous · Answer

what was the answer?