When a basketball player makes a trip to the free throw line, he takes two consecutive shots. It is often wondered whether these two shots are independent or dependent: does the probability of making the second free throw *depend* on whether a player makes the first free throw?
After analyzing data for basketball star Albert Jones, statisticians determined that his first and second free throws are entirely *independent events*. The frequency table below shows the data that analysts used to determine this independence.
**Fill in the missing values from the frequency table.**
|**Makes first shot** | Misses first shot| Row total
- | - | -
**Makes second shot** |[[☃ input-number 1]] |[[☃ input-number 2]]| $180$
**Misses second shot** | [[☃ input-number 3]] | [[☃ input-number 4]] | $70$
**Column total** | $200$ | $50$ | $250$