________ is a problem involving slow development of printed word recognition and spelling

A population has ? = 50 and ? = 5. If 10 points are added to every score in the population, then what are the new values for the mean and standard deviation?

a. ? = 60 and ? = 5 b. ? = 50 and ? = 5 c. ? = 50 and ? = 15 d. ? = 60 and ? = 15

One of the most common causes of loss of visual acuity among older adults is

A. Romberg's sign disease B. contraction of the eye's fovea C. slower reaction time D. senile macular degeneration