EasyMathematicsHigh School (11–12)Statistics and Probability › StatisticsNumericalBoard ExamAPA-LevelIB
A bakery counts the loaves of bread it sells each day for a week, from Monday to Sunday: 48, 52…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A bakery counts the loaves of bread it sells each day for a week, from Monday to Sunday: and . The owner wants three numbers to describe a typical day. Find the mean, the median and the mode of the daily sales.
Need a reminder? The key ideaShow
Mean: (class marks for grouped data). Median: the middle value, or for grouped data. Mode: the most common value, or .
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. The mean. The total is . Then loaves.
Step 2. The median. The ordered values are . There are seven, so the median is the fourth: loaves.
Step 3. The mode. The value occurs twice and no other value repeats. The mode is loaves.
Answer: mean , median , mode loaves. The three averages are close, so no single day is far from the rest.
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