Asurvey shows that 45% of the respondents pick option a. given that 50 people replied, what is the standard error of the proportion

0.07

Step-by-step explanation:

Given: A survey shows that 45% of the respondents pick option

i.e. P =45%= 0.45

Q=1-P=1-0.45=0.55

The total number of people replied n = 50

Now, the standard error of the proportion is given by :-

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50