Probability of Simple Event

What do you call the measure or estimation of how likely it is that an event can occur?

• Event

• Probability

• Outcome

• Sample space

Tags

CCSS.7.SP.C.5

What is the formula used in finding the probability of an event E?

• $P\left(E\right)\ =\ \frac{no.\ of\ outcomes\ favorble\ to\ E}{total\ no.\ of\ possible\ outcomes}$
  

• $P\left(E\right)\ =\ \frac{no.\ of\ outcomes\ favorable\ to\ E}{total\ numberof\ favorable\ outcomes}$

• $P\left(E\right)\ =\ \frac{no.\ of\ outcomes}{total\ no.\ of\ outcomes}$

• $P\left(E\right)\ =\ \frac{no.\ of\ outcomes\ favorable\ to\ E}{no.\ of\ events}$

Tags

CCSS.7.SP.C.7A

In throwing a fair die, what is the probability of getting an odd number?

• 1/6

• 1/3

• 4/6

• 1/2

Tags

CCSS.7.SP.C.7B

A card is drawn in random from a pack of 52 playing cards. Find the probability that the card drawn is a queen.

• 1/13

• 2/13

• 7/52

• 9/52

Tags

CCSS.7.SP.C.7B

There are 2 red balls, 3 yellow balls and 4 green balls in a bag. If a ball is drawn in random, what is the probability that the ball drawn is red?

• 2/9

• 1/3

• 2/3

• 0

Tags

CCSS.7.SP.C.7B

Earl is asked to choose a day of a week. What is the probability of choosing a day which starts with S?

• 1/7

• 2/7

• 3/7

• 1

Tags

CCSS.7.SP.C.7A

If a letter is chosen at random from the word PERSEVERANCE, what is the probability that the letter chosen is E?

• 1/5

• 1/4

• 1/3

• 1/2

Tags

CCSS.7.SP.C.7B

If one letter is chosen at random from the word TRUSTWORTHY, what is the probability that the letter chosen is a consonant?

• 2/9

• 7/9

• 8/11

• 9/11

Tags

CCSS.7.SP.C.7B

A glass jar contains 40 marbles with colors red, green, blue, and yellow. The probability of getting a green marble is 1/5. What does it mean?

• There are 5 green marbles in the jar.

• There are 8 green marbles in the jar.

• There are more green marbles that the other.

• There is only one green marble in the glass jar.

Tags

CCSS.7.SP.C.5

You tossed a five-peso coin five times and you got heads each time. You tossed again and still a head turned up. Do you think the coin is biased? Why?

• I think the coin is biased because it favored the heads.

• I think the coins is biased because it is expected to turn up tail for the next experiments.

• I think the coin is not biased because both faces of the coin have equal chances of turning up.

• I think the coin is not biased because the probability of turning heads is 3/4 while that of tails is only 1/4.