Hikers spent the following amounts of time (in minutes) to complete a nature hike:48, 46, 52, 57, 58, 52, 61, 56.
2 answers:
Answer:
Step-by-step explanation:
Given that hikers spent the following amounts of time (in minutes) to complete a nature hike:48, 46, 52, 57, 58, 52, 61, 56.
Mean = sum/no of items =
In ascending order this becomes
46, 48, 52, 52, 56, 57, 58, 61
Median is average of middle items
=
Here mean is less than median this implies there are more entries above the mean. i.e. skewed not symmetrical. For symmetrical distributions mean and median would be equal
c) If 92 is added to this data entry median becomes 56 but mean becomes
while median increases by 4.75
d) Median is better because it is not affected by outliers i.e. extreme values added to the set
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Answer:
0.9 hours
0
the nature of line is pure liner
Step-by-step explanation:
The attached graph is the drawn graph of given data
i) A teenager would spend exercising in one day if they spent 0.25 hours on social media.
0.9 hours
According to the graph if you locate the 0.25 hour on x-axis and draw perpendicular the will intersect the line on the value of y-axis is = 0.9 hours
ii) if they spent 1.38 hours on social media the corresponding value of exercising per day is approx 0
iii) Yes it has the best fit value of corresponding values between two. which is also reasonable in the all cases. the nature of line is pure liner.
