Find the unknown entries a,b,c,d,e and f in the following distribution of heights of students in a class

Find the unknown entries (a,b,c,d,e,f,g) from the following frequency distribution of heights of 50 students in a class: Class intervals (heights in cm) Frequency Cumulative Frequency 150-155 155-160 160-165 165-170 170-175 175-180 12 b 10 d e 2 a 25 c 43 48 f

Identify a, b, c,d,e and f in the following table :

Identify a, b, c,d,e and f in the following table :

Find the mean of the students for the following distribution

The mean of the following distribution is 18. Find the frequency f of the class 19-21 .

The mean of the following distribution is 52 and the frequency of class interval 30-40 is f. Find f.

The following distributions represent the height of 160 studens of a class : Find the modal height

The following table shows the distribution of the heights of a group of students: Use a graph sheet to draw an Ogive for the distribution. Use the Ogive to find: the number of students whose height is more than 168 cm

The following table shows the distribution of the heights of a group of students: Use a graph sheet to draw an Ogive for the distribution. Use the Ogive to find: the number of students whose height is less than 148 cm.

The following table shows the distribution of the heights of a group of students: Use a graph sheet to draw an Ogive for the distribution. Use the Ogive to find: the inter quartile range