Probability & Statistics Review

Probability is a number that describes the...

• relationship between two sets of data.

• percent of change.

• distance around a figure.

• likelihood that an event will occur.

Tags

CCSS.7.SP.C.5

The probability of an event will fall between

• 0 and 1

• -1 and 1

• 0 and 10

• -5 and 15

Tags

CCSS.7.SP.C.5

If an event can occur with a probability of 24/25, then we say the likelihood of the event occurring is:

• certain

• impossible

• unlikely

• likely

Tags

CCSS.7.SP.C.5

If an event can occur with a probability of 3/8, we can say the likelihood of the event occurring is:

• impossible

• certain

• unlikely

• likely

Tags

CCSS.7.SP.C.5

What is the likelihood of flipping heads on a coin?

• impossible

• unlikely

• equally likely

• certain

Tags

CCSS.7.SP.C.5

Which event has a probability of zero or a likelihood of impossible?

• Rolling a 7 on a 6 sided dice.

• Tossing a coin and landing on heads.

• Rolling an even number on a dice.

• The sun rising in the morning.

Tags

CCSS.7.SP.C.5

If a six-sided die is rolled, what is the probability that it will land on an odd number?

Tags

CCSS.7.SP.C.7B

At a community swimming pool there are 2 managers, 8 lifeguards, 3 concession stand clerks, and 2 maintenance people.  If a person is selected at random, find the probability that the person is either a lifeguard or a manager.

• 2/3
• 8/15
• 2/15
• 1/5

Tags

CCSS.HSS.CP.B.7

At a community swimming pool there are 2 managers, 8 lifeguards, 3 concession stand clerks, and 2 maintenance people.  If a person is selected at random, find the probability that the person NOT a maintenance person.

• 2/15

• 1/5

• 2/3

• 13/15

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue? (Please make sure the fraction is in lowest terms).

• 5/6
• 1/2
• 1/3
• 1/6