Question

The following data set shows the ages of students going to a museum.12, 12, 12, 12, 13, 13, 15 which two measures are equal to 12?
A.mean
B.median
C.mode

Answer 1

1. Find the mean that is the average value:

$\dfrac{12+12+12+12+13+13+15}{7}=\dfrac{89}{7}\approx 12.71.$

2. The median is the "middle" of a sorted list of numbers. For the numbers

12, 12, 12, 12, 13, 13, 15

the median is 12.

3. The mode is simply the number which appears most often. For the numbers

12, 12, 12, 12, 13, 13, 15

• the number 12 appears 4 times;
• the number 13 appears twice;
• the number 15 appears once.

Then the mode is 12.

Answer: B and C.

Answer 2

Mode is equals to 12. According to statistics, mode is defined as the number in a given list of number that has the most occurrence. In this scenario, the number 12 has appeared 4 times, hence 12 is the mode.

Median is also equals to 12. To get the median, you have to arrange the numbers from lowest to greatest and get the middle value.

Therefore, median and mode are the both equal to 12.