Reference no: EM132849176

In a recent? survey, academic? professionals, professors and technology? leaders, were asked to indicate if the gains in student learning attributed to education technology justified? colleges' spending in this area. The accompanying table summarizes the responses. If an academic professional is selected at? random, answer the following questions.

JUSTIFIED? Professor Technology Leader Total
Yes 777 506 1283
No 1048 1319 2367
Total 1825 1825 3650

a. What is the probability that he or she indicates gains in? students' learning attributable to education technology have justified? colleges' spending in this? area?

b. What is the probability that he or she is a technology? leader?

c. What is the probability that he or she indicates gains in? students' learning attributable to education technology have justified? colleges' spending in this area or is a technology? leader?

d. Explain the difference in the results in? (b) and? (c).