Consider the discrete probability distribution in the following table
X 4 5 6 7
P(X) .4 .1 .2 .3
Find P(X=4), P(X<4), and P(X=4 or X=5).

Select the correct answer and solve for y

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale

Jackson earns $25 per hour as a tutor at the college library. he set a weekly spending budget of $130 each week and puts the remaining money in his savings account. how many hours must he work this week to have at least an extra $50 to put in his savings account