Probability Buildup!

If the probability of an event is 0.83, which of the following best describes the likelihood?

• Impossible

• Likely

• Unlikely

• As Likely as Not

Tags

CCSS.7.SP.C.5

If the probability of an even is 0.03, then which of the following best describes the events likelihood?

• As likely as not

• Unlikely

• Certain

• Likely

Tags

CCSS.7.SP.C.5

Mrs. Jones noticed that of the 27 students in class, 5 are wearing hats and the rest are not. What is the experimental probability that the next student that enters is wearing a hat?

• 22/27

• 6/28 = 3/14

• 5/27

• 5/28

Tags

CCSS.7.SP.C.6

While at the grocery store, it was noticed that 4 packages of greens were spoiled and 9 were not. What is the probability of picking up a bag that is not spoiled?

• P(not spoiled)

  4/9

• P(not spoiled)

  4/13

• P(not spoiled)

  9/13

• P(not spoiled)

  5/9

Tags

CCSS.7.SP.C.7B

The after schoolers are randomly choosing the snack for the day. Mrs. Jones has 2 packages of Teddy Grahams, 3 packages of Vanilla Wafers, and 7 apples. If each snack name is written on a slip of paper and put in a jar, what is the probability of randomly selecting NOT Teddy Grahams?

• P(not Teddy) =

  1 - P(Teddy)

  1 - 2/12

  10/12

• P(not Teddy)

  1 - P(Teddy)

  1 - 10/12

  2/12

• P(not Teddy)

  1 - P(Teddy)

  1 - 2/3

  1/3

• P(not Teddy)

  1 - P(Teddy)

  1 - 2/10

  8/10

Tags

CCSS.HSS.CP.B.7

An intersection was observed. Of the 20 cars that passed, 8 were SUVs, 5 were four-doors, and 7 were pickups. What is the experimental probability that the next car to pass is a four-door?

• P(four-door)

  5/15 = 1/3

• P(four-door)

  8/20 = 2/5

• P(four-door)

  5/21

• P(four-door)

  5/20 = 1/4

Tags

CCSS.7.SP.C.6

If the probability of an even it 0.45, then which of the following best describes the events likelihood?

• Impossible

• As likely as not

• Unlikely

• Likely

Tags

CCSS.7.SP.C.5

Sage and Erina are both gathering school supplies. They have 8 notebooks, 5 pencils, and 7 erasers. What is the probability of someone not getting a pencil?

• P(not a pencil)

  1 - P(pencil)

  1 - 8/20

• P(not a pencil)

  1 - P(pencil)

  1 - 5/7

• P(not a pencil)

  1 - P(pencil)

  1 - 5/20

• P(not a pencil)

  1 - P(pencil)

  1 - 5/8

Tags

CCSS.HSS.CP.B.7

A spinner is divided into five sections labeled A, B, C, D, E. The spinner was spun 100 times and the results are: A = 18, B = 22, C = 21, D = 19, E = 20. Does it appear that the sections on the spinner are of equal size?

• Yes

• No

• Cannot tell because we don't see the spinner

• It is not important to know

Tags

CCSS.7.SP.C.7A

Track season is happening at Scott Middle School. So far today, it has been noted that 3 runners are wearing running tights and 14 are not. What is the experimental probability that the next runner who passes by will be wearing running tight?

• P(not running tights) 3/17

• P(running tights)

  4/15

• P(running tights) 3/17

• P(running tights) 14/17

Tags

CCSS.7.SP.C.6