Question

please anwer with expalination and please do it quickly​

Answer 1

Answer:

a)50

b)30

c)40-50

d)1st class

Step-by-step explanation:

a) class size of interval,the total students

so,12+16+8+12+2=50.

b)what is the upper limit ,so the answer is 30 that the third class =20-30 and the bigger or upper no is 30

c)the class mark of fifth class is 40-50.

d)notice ,the first class has the lowest frequently because of 0-10 marks , second class is of 10-20 marks.. etc.so the lowest frequently is of 1st class.

hope it's help ,mark me as brainest.please