WILL GIVE BRAIN PLEASE HELP ASAPA mother tracks the duration of her baby's three daily naps for a few weeks. The mean time, in minutes, and the standard deviation, SD, for each nap are recorded in the table below. 1st Nap 2nd Nap 3rd Nap MEAN 83 SD = 9 Mean = 52 SD = 6 Mean = 39 SD = 11 Use the information in the table to select the true statement. The 3rd nap is the least consistent in duration because its mean is the lowest. The 2nd nap is the least consistent in duration because its standard deviation is the lowest. The 1st nap is the least consistent in duration because its mean is the highest. The 3rd nap is the least consistent in duration because its standard deviation is the highest.
Accepted Solution
A:
The correct answer is the last one, that the 3rd nap is the least consistent in duration because its standard deviation is the highest.
Standard deviation is a measure of variation from the mean; it tells how different values are from the mean. For that nap to have a higher standard deviation means that its values were on average more different from the mean than the others.