Mary is a scientist studying bacteria in a lab. She observes how bacteria changes over time. Use the following table to answer the three questions below.
Time
Number of Bacteria
10:00am
1,000
10:30am

2,500
11:00am
6,250
11:30am
15,625
1) Does this situation model an exponential or linear function? Explain.
2) Does this situation model growth or decay?
3) What is the common difference or ratio?

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Out of five men and five women, we form a committee consisting of four different people. assuming that each committee of size four is equally likely, find the probabilities of the following events: 1. the committee consists of two men and two women 2. the committee has more women than men. 3. the committee has at least one man. for the remainder of the problem assume that alice and bob are among the ten people being considered. 4. both alice and bob are members of the committee.