Suppose 55U% of the population has a retirement account. If a random sample of size 639639 is selected, what is the probability that the proportion of persons with a retirement account will differ from the population proportion by less than 3%3%

The probability is

Step-by-step explanation:

From the question we are told that

  The population proportion is  p =  0.55

   The sample size is  n  =  639

Generally the standard deviation of this sampling distribution is mathematically represented as

=>    

=>    

Generally the probability that the proportion of persons with a retirement account will differ from the population proportion by less than 3% is mathematically evaluated as

=>    

=>    

From the z table the area under the normal curve to the left corresponding to -1.523 is

From the z table the area under the normal curve to the left corresponding to  1.523 is

we need the options

step-by-step explanation:

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.