Answered

experiment To solves the Problem, use the 4 steps plan: understand, plan, Solve, Check and look back. L. Read each problem and then, solve.
1. what is the probability that you get a black pen from a box of black pens?
2. your teacher puts 5 cards numbered 1, 3, 5, 7 and 9 on her desk. Without looking. What is the probability that you will pick a 7 when asked by your teacher to pick one card?
3. what is the probability that the new school principal coming to your school in a male?
4. five boys join a spelling contest. What is the probability that one of the boys wins?
5. what is the probability that you get an 8 when you are rolling a number cube?

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Answer:

1.) 100%

2.) 20%

3.) 50%

4.) 20%

5.) 0%

Explanation:

1.

All pens are black so therefore he would get 100% of probability

2.

there are five numbers that teacher puts so 100%÷5=20%

3.

there are two possible gender, male and female so each gender gets 50%

4.

there are five boys that joined so 100%÷5=20% probability for each boys to win

5.

0% because the dice contains only numbers 1-6

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