Edvard has to take a seven-question multiple-choice quiz in his sociology class. Each question has four choices for answers, of which only one is correct. Assuming that Edward guesses on all seven questions, what is the probability that he will answer a) all seven questions correctly, b) exactly four questions correctly, c) at least four questions correctly. a) The probability is (Type an integer or decimal rounded to five decimal places as needed.) b) The probability isO (Type an integer or decimal rounded five decimal places as needed.) c) The probability is (Type an integer or decimal rounded to five decimal places as needed.)

Power operation is topic of algebra in Math. It is use to represent repeated multiplication. Very big number and very small number can be easily express using power operation. Power operation is useful in many fields. In space engineering, it helps in re…

The exponent or power or index of a variable/number is the number of times that variable/number is multiplied by itself.