Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
This topic contains 1 attachment.
Home Q & A Board Science-Related Homework Help Mathematics
New Topic  
peach3379 peach3379
wrote...
Go to Answer
Posts: 14
Rep: 0 0
10 years ago
A set of final exam scores in an organic chemistry course was found to be normally distributed, with a mean of 73 and a standard deviation of 8.

What is the probability of getting a score higher than 71 on this exam?
Read 2932 times
3 Replies
Replies
wrote...
#1
10 years ago
The probability is

P(X>71) = P((X-mean)/s >(71-73)/8)

=P(Z>-0.25)

=0.5987 (check standard normal table)
Would you know my name, if I saw you in heaven?

Eric Clapton
Answer accepted by topic starter
bio_manbio_man
wrote...
#2
Educator
Top Poster
Posts: 33243
Rep: 3442 15
10 years ago
Sign in or Sign up in seconds to unlock everything for free
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
nite_n_day,  jaco4949

Related Topics

wrote...
#3
10 years ago
Please mark as solved Slight Smile
Would you know my name, if I saw you in heaven?

Eric Clapton
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1275 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 992
  
 735
  
 36