Suppose 17% of the listeners of a radio station listen to it while they work. what is the approximate standard deviation of the proportion for the samples of size 91? •3.9% •7.8% •0.4% •1.8%

The correct answer is 3.9%

Step-by-step explanation:

P : the probability of listening at work, is 17%  or 0.17

Q : the probability of NOT listening at work, is 1 - 0.17, or 83% or 0.83

N : the sample size, is 91

The standard deviation of samples then is

 So, the correct Option is A. 3.9%

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

step-by-step explanation: