Question 1. In a survey of children who saw three different shows at Walt Disney World, the following information was gathered: 39 children liked The Little Mermaid, 43 children liked 101 Dalmatians, 56 children liked Mickey Mouse, 7 children liked The Little Mermaid and 101 Dalmatians, 10 children liked The Little Mermaid and Mickey Mouse, 16 children liked 101 Dalmatians and Mickey Mouse, 4 children liked The Little Mermaid, 101 Dalmatians, and Mickey Mouse, 6 children did not like any of the shows.
Answer the following questions:
- How many students were surveyed?
- How many liked The Little Mermaid only?
- How many liked 101 Dalmatians only?
- How many liked Mickey Mouse only?
Question 2. The table below shows the number of accidents each year at
a particular road junction:
|
1991
|
1992
|
1993
|
1994
|
1995
|
1996
|
1997
|
1998
|
|
4
|
5
|
4
|
2
|
10
|
5
|
3
|
5
|
a. Work out the mean, median and mode for the values above.
b. A road safety group wants to get the council to make this junction
safer. Which measure will they use to argue for this?
Question 3. Derive the Boolean Expression and construct the switching circuit for the truth table stated.
