The following table shows the results of a survey of authors by a (fictitious) publishing company. New Authors Established Authors Total Successful 7 12 19 Unsuccessful 11 6 17 Total 18 18 36 Consider the following events: S: an author is successful; U: an author is unsuccessful; N: an author is new; and E: an author is established. Describe the events N ∩ U and N ∪ U in words. N ∩ U is the event that an author is . N ∪ U is the event that an author is . Use the table to compute n(N ∩ U) and n(N ∪ U). n(N ∩ U)= n(N ∪ U)=

The following table shows the results of a survey of authors by a (fictitious) publishing company. HINT [See Example 5.] New Established Total Authors Authors Successful 7 27 34 Unsuccessful 11 55 66 Total 18 82 100 Consider the following events: S: an author is successful; U: an author is unsuccessful; N: an author is new; and E: an author is established. Describe the event U U E' in words. O This is the event that an author is unsuccessful and established. O This is the event that an author is either unsuccessful or not established. O This is the event that an author is unsuccessful and not established. O This is the event that an author is either successful or not established. O This is the event that an author is either successful or established. Find the number of elements it contains. authors

I can not tell what the answer is. Which is correct? I have a selection of 5 events as follows: a) The marble selected is white b) The marble selected is odd c) The marble is both white and odd d) The marble selected is either white or odd e) Assuming it is a white marble, the probability it is even

d. Are events A and C mutually exclusive? - Select your answer - e. What is Bº? (i) {E1, E3, E5, E6} (ii) {E2, E4, E5, E7} (iii) {E3, E4, E5, Es} (iv) {E₁, E4, E6} (v) {E2, E4, E7} (vi) {0} - Select your answer - What is P(B)? If necessary round your answer to two deicmal places.