The table gives a set of outcomes and their probabilities. Let A be the event the outcome is less than 8". Find P(A) Outcome Probability 1 0.12 2 0.11 3 0.4 0.02 5 0.04 6 0.17 7 0.02 8 0.09 9 0.03 ​

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle