IN 10 MATHEMATICS TEST A STUDENT
SCORED
45, 67, 89, 50,100, 90, 82, 99, 60, 30
Answers
Answer:
The median is also the number that is halfway into the set. To find the median, the data should be arranged in order from least to greatest. If there is an even number of items in the data set, then the median is found by taking the mean (average) of the two middlemost numbers.
The median of a set of data is the middlemost number in the set. The median is also the number that is halfway into the set. To find the median, the data should first be arranged in order from least to greatest.
To remember the definition of a median, just think of the median of a road, which is the middlemost part of the road. In the problem above, 12 is the median: it is the number that is halfway into the set. There are two children older than 12 and two children younger than 12. Let's look at some more examples.
Gas pumpExample 1: The Jameson family drove through 7 states on their summer vacation. Gasoline prices varied from state to state. What is the median gasoline price?
$1.79, $1.61, $1.96, $2.09, $1.84, $1,75, $2.11
Solution: Ordering the data from least to greatest, we get:
$1.61, $1.75, $1.79, $1.84, $1.96, $2.09, $2.11
Answer: The median gasoline price is $1.84. (There were 3 states with higher gasoline prices and 3 with lower prices.