Statisticshard · Past Paper
A and B are two mutually exclusive events. P(A)=0.4 and P(B)=0.3. Find P(neither A nor B).
A0.7
B0.3
C0.1
D0.6
✓ Correct Answer: B — 0.3
P(A or B) = 0.7. P(neither) = 1 - 0.7 = 0.3.
Share this question
More from Statistics
- In a bar graph, if a bar of length 8 cm represents 400 units, what length will represent 1000 units?
- What is the mean of the first five multiples of 3?
- If the range of a set of data is 0, then:
- A class has 20 boys and 30 girls. The mean height of boys is 150 cm and girls is 140 cm. What is the mean height of the whole class?
- The mean of a data set is X. If each item is decreased by X, what is the new mean?