A search on Best Barryo Mobile's website for "smartwatch" produced ninety-two results, 40 of which are actual smartwatches. Their prices are summarized in the frequency table below: Price ($) Number of Watches 50 to under 100 4 100 to under 150 4 150 to under 200 7 200 to under 250 6 250 to under 300 13 300 to under 350 6 a. Calculate an approximate value for the sample variance. s2= Round to two decimal places if necessary b. Calculate an approximate value for the sample standard deviation. s= Round to two decimal places if necessary

A search on Best Barryo Mobile's website for "smartwatch" produced ninety-two results, 40 of which are actual smartwatches. Their prices are summarized in the frequency table below: a. Calculate an approximate value for the sample variance. s2= Round to two decimal places if necessary b. Calculate an approximate value for the sample standard deviation. s= Round to two decimal places if necessary