A data set with a mean of 60 has a standard deviation of 4.5.
A data set with a mean of 60 has a standard deviation of 4.5. Which of the following is the smallest number that falls within one standard deviation of the mean?
Answer/Solution
55
Steps/Work
One standard deviation of the mean is from{mean}-{deviation}=60-4.5=55.5 to{mean}+{deviation}=60+4.5=64.5. The smallest number within this range from the options is 55.
Answer: A.
Hope this helps.
Answer: A.
Hope this helps.