Question

pls answer this
plzzz it's urgent

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Answer 1

Answer:

Option no. D

Step-by-step explanation:

age of all teachers=50

more than equal to 30=15+18+9

Answer 2

Answer:

Answer for question 1 option A

step by step explanation=

age more than 30 years= 15+18+9 which is = 42

probability=42/50=21/25

question 2 option B (ii)

because there is no teacher below 20years

question 3 option D (iii)

the frequency between 40-49 is 18 then answer = 18/50 on dividing by 2 the answer becomes 9/25