Bloomberg l. p. lists the top 25 u. s. companies by revenue. walmart stores is number one followed by exxon mobil and chevron. of the 25 companies on the list, 8 are in some type of electronics-related business. suppose five firms are randomly selected. a. what is the probability that fewer than two of the firms are in some type of electronics-related business? b. what is the probability that all four of the firms is in some type of electronics-related business? c. what is the probability that exactly two of the firms is in some type of electronics-related business?