posted by Karl Lewis on .
A study of reading ability in schoolchildren chose 60 fifth-grade children at random from a school. The researchers had children's scores on an IQ test and on a test of reading ability. An eccentric professor has his own idea of the relationship between IQ and reading scores. He believes that an IQ of 100 should produce a reading score 43, and that reading score should increase by 1.1 points for every additional point of IQ. What is the equation of the professor's line?
Reading score = _______+________ IQ
Where a is intercept and b is the slope (1.1)
How do I find the intercept
we can solve by using formula