A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
A grayscale digital camera with 1,000,000 pixels takes a picture (the picture is made of 1,000,000 parts and each part has a certain amount of gray). A histogram is made where the data is the amount of gray in each of these parts. The histogram looks bellshaped with a mean of 125 gray levels and a standard deviation of 15.
How many pixels are brighter than 163 gray levels?
5000
10,000
160,000
50,000
anonymous
 one year ago
A grayscale digital camera with 1,000,000 pixels takes a picture (the picture is made of 1,000,000 parts and each part has a certain amount of gray). A histogram is made where the data is the amount of gray in each of these parts. The histogram looks bellshaped with a mean of 125 gray levels and a standard deviation of 15. How many pixels are brighter than 163 gray levels? 5000 10,000 160,000 50,000

This Question is Open

dan815
 one year ago
Best ResponseYou've already chosen the best response.0125 +k *15= 163 k is telling you the number of standard deviations above you need to go to get 163

dan815
 one year ago
Best ResponseYou've already chosen the best response.0usually they call that K as Z and say its the Z score

dan815
 one year ago
Best ResponseYou've already chosen the best response.038/15 = Z score a little higher than 2.5 lets say

dan815
 one year ago
Best ResponseYou've already chosen the best response.0look at a z table and see what probability that z score is use a calculator 38/15

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@dan815 what would i type in calculator
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.