The table gives information about the heights of 35 girls. Height (h metres)
Frequency
1.30 11
1.40 9
1.50 7
1.60 6
1.70 2.
2
(a) Find the class interval that contains the median.
(b) Work out an estimate for the mean height.

use ratio method but you start with division

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.