Question

I'll brainliest the answer ​

Answer 1

Answer:

Step-by-step explanation:

its easy , first draw the table

now count the no. of 'O' blood group in the student

now probability of O blood group is 11by 30

Answer 2

Answer:

11/27

Step-by-step explanation:

blood group---frequency

O           ----      11

A           ----      8

B           ----      5

AB        ----      3

according to the question number of total students 30

but student in list 27

we are counting 27 as total stuent

no. of students have blood group O is 11

probability of selecting student has O blood group is = 11/27