Statistics & Data
With the 2021 Chapter Competition happening in a few days, here are some problems from the 2020 Chapter Competition for extra practice!
Sprint Round, #13
While there were many problems written and solved for MATHCOUNTS in 2020, below is a selection of some of the best of the year!
While there is no traditional School Competition in this year’s Competition Series, this year’s online Practice Competitions are in full swing. For some additional practice, see some of last year’s School Competition questions below!
Sprint Round, 19
November 9 – November 15 was Children’s Book Week! Here are some problems to celebrate.
Below are 12 integer quiz scores listed in order from least to greatest followed by a box‑and‑whisker plot of the data. What is the value of X?
10, 12, 14, 14, 15, X, 20, 23, 26, 30, 33, 35
Lou has been contracted to tile classroom floors as part of the renovation of a local school. During the first five days on the job, Lou completed tiling 4, 5, 6, 4 and 8 classrooms, respectively. What is the average number of classrooms Lou tiled each day during that five-day period? Express your answer as a decimal to the nearest tenth.