Question

Question : 2
Out of 300 persons residing in a region, a sample of 30 persons is selected at random
and the heights (in cm.) of these selected persons are as under:
163, 148, 151, 162, 145, 152, 149, 158, 153, 149
150, 152, 145, 141, 162, 168, 148, 158, 149, 141
146, 155, 159, 150, 161, 153, 162, 160, 154, 165
1. Distribute these data into 6 classes and also find the mid value of each class.
2. Obtain 'less than' type cumulative frequency distribution.
3. What is the percentage of persons having height less than 155 cm.?
4. Obtain "more than' type cumulative frequency distribution.
5. How many persons have the height between 147 to 157 cm.?​

Answer 1

Answer:

5th question 's answer is

Explanation:

12