The digit span task was developed by psychologist George A. Miller in the 1950s as part of his research on memory capacity. It is designed to assess an individual's working memory by measuring how many digits they can recall in the correct order after hearing them. This task has since become a widely used measure in cognitive psychology and neuropsychology.
720 (10*9*8)
Four digit numbers span from 1000 to 9999. This totals (9999-1000) +1 = 9000 different four digit numbers
95
97531
If the first digit of the three-digit identification tag must be 5, there are 10 possible choices (0-9) for the second digit and another 10 possible choices for the third digit. Therefore, the total number of different three-digit identification tags that can be made is calculated as follows: (1 \times 10 \times 10 = 100). Thus, 100 different three-digit identification tags can be created with the first digit fixed as 5.
SPAN magazine was created in 1960.
Steeleye Span was created in 1969.
C-SPAN was created in 1979.
A Parcel of Steeleye Span was created in 1972.
span of control
A short attention span is defined as a length of time less than necessary to complete the task. As a rule a child should have an attention span of one minute for each year of age. As you go from childhood to adulthood your attention span should lengthen.
Digit - magazine - was created in 2001.
Adam's Task was created in 1986.
C-SPAN Bus program was created in 1993.
Time - Steeleye Span album - was created in 1996.
i have no clue
Chevrolet Task Force was created in 1955.