Researchers recruited a sample group of older adults and a sample group of younger adults for a study on memory.  Their ages are below. Older adults:                                      Younger adults:Age        Age2                                      Age        Age250           2500                                       22           48472           5184                                       24           57664           4096                                       30           90078           6084                                       21           44155           3025                                       26           67684           7056                                       28           78467           4489                                       27           72965           4225                                       19           36170           4900                                       32           1024 Calculate the mean, range, variance, and standard deviation for the ages of each group.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.