Statistics

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Bee__

New member
Joined
Jan 8, 2022
Messages
3
Kindly helpe solve this problem

The weight (X) of 100 students of Govt. Islamia Degree College, Lahore Cantt (recorded to the nearest pounds), are given below:

150,
147,
138,
158,
138,
164,
140,
176,
135,
156,
150,
147,
163,
153,
145,
132,
136,

119,
140,
128,
140,
145,
144,
148,
154,
135,
125,
152,
160,
165,
170,
173,
180,
142,

175,
155,
157,
168,
173,
135,
125,
120,
121,
123,
125,
137,
140,
145,
150,
169,
170,

179,
180,
115,
120,
135,
110,
120,
125,
145,
135,
175,
190,
115,
125,
210,
205,
184,

174,
145,
220,
180,
205,
210,
205,
174,
135,
150,
149,
120,
125,
130,
160,
165,
145,

120,
115,
140,
150,
170,
180,
135,
145,
200,
210,
215,
205,
135,
145,
119,




Find the number of students and percentage of students falling between the limits:
± S (ii) ± 2S (iii) ± 3S

Also find: (i) M.D. (ii) Q.D. (iii) and var(Y) if Y = (4 = 3X)
Using properties of standard deviation and mean.
 
Bee__ said:
No i haven't...
Click to expand...
Use calculator or spreadsheet to calculate the mean and the standard division.

Please show us what you have tried and exactly where you are stuck.

Please follow the rules of posting in this forum, as enunciated at:


Please share your work/thoughts about this problem.
 
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