Quantitative Probability

What is the probability of rolling 15 with a pair of dice?

• impossible

• unlikely

• equally likely

• likely

Jasmine tossed a coin in the air. What is the probability that the coin will land on tails?

Hannah will roll a number cube, labeled 1 through 6, 300 times. About how many times could Hannah expect to roll a number less than or equal to 4?

• 150

• 50

• 200

• 100

A number cube has sides labeled 1 to 6. Sue will roll the cube 48 times. How many times should Sue expect to roll a 5?

• 8

• 6

• 12

• 4

In a factory, a sample of 40 light bulbs was selected from a box of 800 light bulbs. In the sample, 2 light bulbs would not work. Based on this sample, how many non-working light bulbs would be expected in the group of 800 light bulbs?

• 15

• 25

• 30

• 40

The probability of picking a quarter from a jar of coins is 0.125. If Noah has 250 coins in the jar, about how many quarters are in the jar?

• 25

• 30

• 35

• 40

Tom draws from a deck of 52 playing cards. He draws one card and replaces, shuffles and draws another. If Tom draws 150 cards this way how many cards are likely to be drawn as red?

• 75

• 100

• 125

• 130

• 3

• 6

• 8

• 9

define probability

• probability is rolling a dice and seeing what happens.

• Probability is the chance of a certain event occurring over some outcomes for that event.

• Probability is the chance of a certain event occurring over all possible outcomes for that event.

• probability tells you what time of day it is.

Select which statement is INCORRECT.

• Kieran can expect the spinner to land on an even number about an equal number of times as an odd number.

• Kieran can expect many of his spins to be a number greater than 1.

• Kieran can expect the spinner to land on a 3 more often than a 2.