Atelephone survey is conducted during the day in order to determine the chances of a certain candidate winning an election.
is this study
a. representative?
b. non-representative?

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

hope to and hope that my answer is brainliest.(follow me )

98%

step-by-step explanation:

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!