The English rock band, The Beatles, was formed in Liverpool in 1960. There are 12 studio albums that are considered part of their core catalogue. In the article, "Length of The Beatles' Songs" (Chance, Vol. 25, No. 1, pp. 30-33), T. Koyama lists the album title, date of release, and number of songs on each album. Here are the album names and numbers of songs.

Album Number of songs

Please Please Me ........14

With the Beatles .........14

A Hard Day's Night .....13

Beatles for Sale ...........14

Help! ........................14

Rubber Soul ..................14

Revolver .....................14

Sgt. Pepper ..............13

The Beatles ..................30

Yellow Submarine ..... 6

Abbey Road ................17

Let It Be ....................12

Find the

a. Mean.

b. Median.

c. Mode(s).

For the mean and the median, round each answer to one more decimal place than that used for the observations