Students yu4Liaa 16161 160 140 100 Female Male Female Male M

Students yu4Liaa 161.61 160 140 100 Female Male Female Male Male Female Female 155 196 56 152 363 167 Height(cm) 18.3 150 waPH 143PH

Solution

Q2 Mean height for males= (183 +155+156+152)/4 =161.5

Mean height for females = (157+150+163+167)/4=159.25

ii) range for males = 152 -183,

range for females =150-167

Sample Standard Deviation for females

Variance s² = 41.1874

Standard error of the mean:sd/(n)^1/2 3.70528901257

variance S² = 156.25

Q3. If both the genders are included together

Mean =160.37

range : 150-183

Standard deviation = 10.6896144525

variance =114.06

xi	di= xi-mean		di^2
157	-2.25		5.0625
163	3.75		14.0625
167	7.75		60.0625
150	-9.25		85.5625
Mean	159.25
mean of di^2	41.1875
Square root of di^2	6.41
standard deviation	6.41