Question 1:

Researchers watched dolphin groups off the coast of Ireland in 1998 to determine what activities the dolphin groups partake in at certain times of the day. The numbers in table below represent the number of dolphin groups that were partaking in an activity at certain times of days. Activity Morning Noon Afternoon Evening Total Travel 6 6 14 13 39 Feed 28 4 O 56 88 Social 38 5 9 1O 62 Total 72 15 23 79 189 Guests of a fancy dinner party were asked if they would prefer the steak dinner or the lobster dinner, and if they would prefer to sit inside or outside. The results from their responses are below. Steak Lobster Total Inside 33 19 52 Outside 38 34 72 Total 71 53 124 For each of the following questions, nd the probabilities. Write your answer as a decimal rounded to 4 places. a. What is the probability that a guest selected at random requested to sit inside? b. What is the probability that a guest selected at random ordered lobster and requested to sit inside? l l c. What is the probability that a guest selected at random ordered lobster or requested to sit inside? l l d. Given that a guest requested to sit inside, what the probability that they ordered lobster