Please help for options b Since 240 is more or less than 2 standard deviation's or means from the standard deviation or mean it would would not be surprising?

According to research, 55% of millennials (those born between 1981 and 1997) reported using a library or bookmobile within the last year. Suppose that a random sample of 250 millennials is taken. Complete parts a and b below. a. Complete this sentence: We would expect of the sample to have used a library or bookmobile within the last year, give or take We would expect of the sample to have used a library or bookmobile within the last year, give or take (Round to the nearest integer as needed.) b. Would it be surprising to find that 240 of the sample have used a library or bookmobile within the last year? Why or why not? Since 240 is than 2 from the be surprising