Answer:
The median number of hours worked per week for the sample of 13 high school science teachers is 52.
Step-by-step explanation:
Median of a data set:
The median of a data set is the element that separates the lower 50% of the set from the upper 50%.
If the cardinality n of the set is odd, the median is the element at the position (n+1)/2 of the sorted sed.
If the cardinality n of the set is even, the median is the mean between the elements at the position n/2 and (n/2)+1 of the sorted sed.
In this question:
Hours worked for the sample of 13 high school science teachers:
55, 58, 52, 52, 56, 59, 48, 63, 52, 52, 50, 52, 56
Sorting in an ascending way:
48, 50, 52, 52, 52, 52, 52, 55, 56, 56, 58, 59, 63
Cardinality of 13, so odd, the median is the element at the 13+1/2 = 7th position of the sorted set, which is 52.
The median number of hours worked per week for the sample of 13 high school science teachers is 52.
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