7d Prob

There are 30 students in the class. 14 of them are boys. Write the probability that a student chosen at random is a boy.

What is the probability of rolling a factor of 10 on a fair dice?

Probability must add up to ?

The probability that it rains tomorrow is 0.7. What is the probability that it does not rain tomorrow?

• 0.7

• 1

• 0.3

• 0.03

Write the sample space for tossing a coin.

There are 11 pens in a box. 5 pens are red, 4 pens are blue and 2 are green. Write the probability that a pen chosen at random is NOT red.

What is the correct notation for 'the probability of A'?

• P(A)

• Probability (A)

• Probability of A

• Prob (A)

What is the correct notation for the probability of NOT A?

• P (not A)

• Prob (not A)

• Prob (NA)

• P(A')

When a fair, normal dice is rolled, write the P(4)

• P(4)

• P(1)