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A survey reagarding the heights ( in cm)...

A survey reagarding the heights ( in cm) of 50 girls of class X of a school was conducted and the following data was obtained. Find the mean

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A survey regarding the height (in cm) of 51 girls of class X of a school was conducted and the following data was obtained: Height (in cm) Less than 140 Less than 145 Less than 150 Less than 155 Less than 160 Less than 165 Number of Girls 4 7 18 11 6 5 Find the median height.

A survery regrding the heights (in cm ) of 50 girls of a class conducted and the following data was obatained. Find the mean of above data.

Use Graph paper for this question. A survey regarding height ( in cm) of 60 boys belonging to Class 10 of a school was conducted. The following data was recorded. Taking 2 cm = height of 10 cm along one axis and 2 cm = 10 boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the following : (iii) if above 158 cm is considered as the tall boys of the class. Find the number of boys in the class who are tall.

Use Graph paper for this question. A survey regarding height ( in cm) of 60 boys belonging to Class 10 of a school was conducted. The following data was recorded. Taking 2 cm = height of 10 cm along one axis and 2 cm = 10 boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the following : (i) the median

Find the mean of the following data :

Find the mean of the following data :

Find the mean of following data :

Find the mean for the following data

Find the mean of the following data:

Find the mean for the following data: