Concept explainers
To find: the mean, median, mode and range of the diver weight with tanks.
Answer to Problem 7CT
Here mean is
Explanation of Solution
Given:
The weights of scuba divers without tanks are:
The weight of a tank is
Concept used:
Arithmetic mean:
Mean:
Median
Mode= the value in the data set that occurs most frequently.
Calculation:
According to given the weights of scuba divers without tanks are:
The weight of a tank is
Without tank:
Mean is the average of the data:
The mean
Median is calculated by making the order in increasing order and then choose the middle value.
If the number of the data is even then there will have two middle value so, by taking the mean of two middle value get the median as:
The data in increasing order is:
Total number of data is
The median is
Mode is the value that occurs maximum or most often.
Taking the increasing order of the data:
Here there is no mode since, there is no number which is occurred maximum.
Range is the difference between largest and smallest value.
Taking the increasing order of the data:
Here largest value is
The range here is
With tanks
Tank weighs
Hence, mean is
Chapter 12 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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