Thomas is going to flip an unfair coin
2
22 times. Each coin flip is independent, and the probability that the coin flips heads is
20
%
20%20, percent each time.
If
X
XX is a random variable that represents the number of heads, drag the bars to graph the probability distribution for all possible values of
X
XX.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

might be the correct answer will be question number 2

you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n