91影视

According to a study, Macintosh computers were used by$40\%$ of the students (Macs). The rest mostly used computers. $67$ percent of the school's students were undergraduates at the time of the census. The rest of the group was made up of graduate students. Furthermore, $23\%$ of respondents were graduate students who stated that PCs were their primary machines.

A Venn diagram is a visual representation of relationships between things or limited groups of objects using circles. Circles that overlap have similar qualities to circles that do not overlap. Venn diagrams are graphic representations of the similarities and differences between two concepts.

MAC's share of the market is $42\%$

67 percent of students are undergraduates.

Graduates as a percentage of the total population and PC=$23\%$

In the census, there are $10,000$ students. As a result, the two-way table becomes,

Venn diagram becomes

The probability of a college student using MACs and graduating is represented by the probability. This can be expressed symbolically as,

$P(MAC鈭�Graduate)$

$Probability=\frac{Numberoffavorableoutcomes}{Totalpossibleoutcomes}$

There are a total of $20,000,000$ possible outcomes.

Therefore, $P(MAC鈭�Graduate)=\frac{1000}{10000}=0.1$