Probability and Making Predictions

• 4 times

• 5 times

• 8 times

• 10 times

• 5 times

• 7 times

• 9 times

• 10 times

Tina randomly selected a paper clip, records its color, and returns it to the box.

She does this 30 times. How many times should she expect to get a blue paper clip?

• 4 times

• 5 times

• 6 times

• 7 times

Olivia is conducting an experiment using a bag of marbles.  She reaches into the bag, draws a marble, records the result, and returns the marble to its bag.  She repeats this experiment 20 times.  Her results are shown in the table.

 

Based on these results, predict the number of times Olivia will draw a blue marble from the bag if she repeats the experiment 200 times. (TEKS 7.6C)

• 20

• 40

• 100

• 200

Caiden flipped three coins during a probability experiment. The outcomes of the first 30 trials are shown in the table.

Based on the information in the table, in how many of the next 120 trials will the outcome be exactly two of the coins showing heads? (7.6C-SS)

• 60

• 52

• 40

• 92

A marble will be drawn from the bag and replaced 120 times.  What is a reasonable prediction for the number of times a red or yellow marble will be drawn? (7.6D-SS)

• 7

• 42

• 60

• 140

Alejandro rolls a die and flips a coin 20 times. The results are shown in the table.  If Alejandro rolls a die and flips a coin an additional 150 times, how many times should he expect to roll an odd number and have the coin land with the tail side facing up? (7.6C-SS)

• 4

• 90

• 25

• 30

A bag contains: - 4 red marbles - 6 blue marbles - 3 green marbles - 4 black marbles - 3 yellow marbles A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn? (7.6D-SS

• 50

• 35

• 45

• 14

A bag of fruit contains 3 apples, 2 oranges, 1 banana, and 4 pears.  Luis will randomly select two pieces of fruit one at a time from the bag and not put the fruit back. What is the probability that the first piece of fruit Luis selects will be a banana and the second piece of fruit will be an orange?  (7.6D-SS)

Mike has a set of five cards shown.

Mike will randomly select a card, not replace it, and then select another card.  What is the probability that Mike selects a prime number card first and then a 1?