City Guilds Model Questions Vol1 2018 Information Technology Question 46

A company records the number of website visits each month for a year as follows (in thousands): Jan = 1.2, Feb = 1.5, Mar = 1.8, Apr = 2.1, May = 2.5, Jun = 3.0, Jul = 3.4, Aug = 3.8, Sep = 4.2, Oct = 4.6, Nov = 5.0, Dec = 5.6.\n(a) Compute the mean monthly visits for the year.\n(b) Determine the smallest consecutive sequence of months starting from January whose total visits exceed 20 000. State the number of months in that sequence.\n(c) The company plans a promotional campaign for the next year that will add the same number of visits to each month. What uniform number of additional visits per month is required to raise the average monthly visits for the next year by 10 % compared with this year's average? (Round up to the nearest whole visit.)