PLEASE HELP ITS TIMED I DONT NEED BIG EXPLAINATION WILL DO BRAINLIEST Let i be the imaginary number −1−−−√
. Determine whether the expression a+bi
, where a and b are real numbers, represents a real number or a non-real complex number for each case below. Select Real Number or Non-Real Complex Number for each case.

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)