SOLUTION: I was hoping I could get verification that I figured this problem out right for my homework if anybody can help I would appreciate it. Pulse rates of adult men are approximately

Question 313733: I was hoping I could get verification that I figured this problem out right for my homework if anybody can help I would appreciate it.
Pulse rates of adult men are approximately normal with a mean of 70 and a standard deviation of 8. Using Standard Normal Table, which choice correctly describes how to find the proportion of men that have a pulse rate greater than 78?
1.Find the area to the right of z =1 under a standard normal curve.
2.Find the area between z = -1 and z = 1 under a standard normal curve.
3.Find the area to the right of z = -1 under a standard normal curve.
4.Find the area to the left of z = 1 under a standard normal curve.
I did this: 78-70/8=1
so I think number 1 is the appropriate answer. Fingers crossed, I hope I am right. If I am not can you please take the time to explain it to me. I would greatly appreciate it.
TY,
Kristal

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Pulse rates of adult men are approximately normal with a mean of 70 and a standard deviation of 8. Using Standard Normal Table, which choice correctly describes how to find the proportion of men that have a pulse rate greater than 78?
---
Comment: 78 is one standard deviation to the right of the mean so its
z-score is z=1.
----------------------------------------
1.Find the area to the right of z =1 under a standard normal curve.
2.Find the area between z = -1 and z = 1 under a standard normal curve.
3.Find the area to the right of z = -1 under a standard normal curve.
4.Find the area to the left of z = 1 under a standard normal curve.
I did this: (78-70)/8=1
---
You did well.
----
so I think number 1 is the appropriate answer.
---
Correct
=====================
Cheers,
Stan H.
=====================

RELATED QUESTIONS
Dear pre-algebra helper/tutor people, For my homework, I am stuck on one problem.... (answered by funmath)

Tutor, I was hoping you could help me with this problem. I can not seem to get it to (answered by rapaljer,bucky)

I was hoping to get some help I took this problem from my book, I have homework problems... (answered by KMST)

I have been on these proofs for days and I can't seem to figure my homework out. Thank... (answered by jim_thompson5910)

Hi! I am trying to solve this question for my homework, but I am having trouble. The... (answered by Techpriest,MathTherapy)

This is the problem I'm having trouble with: "Find the value of each variable and the... (answered by Theo)

okay... welcome to my nightmear! The perimeter of a triangle is 33 centimeters. The... (answered by longjonsilver)

Hey, I am hoping someone could help me out. I am completely stumped on this problem I... (answered by Fombitz)

I was doing fine on my homework in till I came to a couple of questions that I could not... (answered by solver91311)