cyra
Moderator
Topics: 29
Posts: 844
|
These are probably very easy ...you just need to know one basic definition to answer ...and that is exactly what i couldnot recall...
1.In a study involving 150 students the mean serum cholesterol level was found to be 176mg/dl,with a sample variance of 25mg/dl.From the data one third of the students will not have a cholesterol level (mg/dl) in the range of:
A)161-191
B)166-186
C)171-181
D)172-180
E)175-177
2.From the data,95%of the nursing students will have a cholesterol level in the range(mg/dl) of:
A)161-191
B)166-186
C)171-181
D)172-180
E)175-177
|
| an
Forum Guru
Topics: 19
Posts: 437
|
hi cyra, my ans would be
1.E
2.B
lemme know if they r right.
___________________
I don't believe in miracles...I rely on them. And sometimes, I create my own.
|
| kingsofke
Forum Guru
Topics: 24
Posts: 715
|
1. C (mean +/_ S.D. (variance= (S.D.)2)
2. B
___________________
In Life there are neither rewards nor punishments, just consequences.
|
| cyra
Moderator
Topics: 29
Posts: 844
|
you are absolutely right kingsofke!....
just a little elaboration...Since variance=square of S.D...the S.D in this question would be of 5mg/dl...therefore...C for ques 1 and B for ques 2.
|
|
| |
| | | | |
