The correlation coefficient is a measure that determines the direction and strength of the relationship between the two variables. The symbols r and Ï represent correspondingly the correlation coefficient of sample and population data. The value of correlation coefficient ranges from -1 to 1 both inclusive.
ENIAC was built in the Moore School of Electrical Engineering of the University of Penn. Designed and built under the supervision of John Mauchly and J. Presper Eckert. ENIAC was built in the Moore School of Electrical Engineering of the University of Penn. Designed and built under the supervision of <b>John Mauchly and J. Presper Eckert</b>.
ENIAC was preceded in 1941 by the German Z3, which was the first general purpose, programmable electro-mechanical computer. It was also preceded by the Colossus, which was built in 1944 in the UK and which was all electronic and reprogrammable by rewiring but was not general purpose (it was used only for code breaking).he IBM ASCC (Automatic Sequence Controlled Calculator), delivered to Harvard University in the same year, was the first large-scale automatic digital computer in the U.S. Whereas the Z3 and ASCC used electro-mechanical relays in their arithmetic operations, the Colossus and ENIAC utilized vacuum tubes.