The probability a person is infected by a certain cold virus is 0.2. If a random sample of 12 people is taken, what is the probability that at least one person will be infected by
the cold virus?

a. O 0.2062
b. 0.9313
c. 0.2400
d. 0.0687

D. i think it is the savings

What does h hours mean

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.