The dot plot shows the highest daily temperature recorded in a city each year for the past 15 years. What is the interquartile r
ange of the data? A/97 B/4 C/6 D/98
1 answer:
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Solution: We are given the population mean
Now, in order to find which shift's mean is closest to population mean, we will find the mean of each shift.
The mean of shift 1 is:
The mean of shift 2 is:
The mean of shift 3 is:
The mean of shift 4 is:
We clearly see the mean of shift 2 is close to the population mean. Hence the option B) Shift 2 is correct.