PPT: Probability

# Probability Class 10 PPT

``` Page 1

PROBABILITY
Page 2

PROBABILITY
VOCABULARY
? Outcome – one possible result of a probability.
? Sample Space – the list of possible outcomes
for a probability event.
? Random – outcomes that occur at random if each
outcome is equally likely to occur.
? Simple Event – a specific outcome or type of
outcome.
? Complementary Events – the events of one
outcome happening and that outcomes not
happening are complimentary; the sum of the
probabilities of complementary events is 1.
Page 3

PROBABILITY
VOCABULARY
? Outcome – one possible result of a probability.
? Sample Space – the list of possible outcomes
for a probability event.
? Random – outcomes that occur at random if each
outcome is equally likely to occur.
? Simple Event – a specific outcome or type of
outcome.
? Complementary Events – the events of one
outcome happening and that outcomes not
happening are complimentary; the sum of the
probabilities of complementary events is 1.
REAL WORLD EXAMPLE:
Best Buy is having an IPOD giveaway. They put
all the IPOD Shuffles in a bag. Customers
may choose an IPOD without looking at the
color. Inside the bag are 4 orange, 5 blue, 6
green, and 5 pink IPODS. If Maria chooses
one IPOD at random, what is the probability
she will choose an orange IPOD?
P(orange) =
4
/
20
=
2
/
10
=
1
/
5
or 20%
Page 4

PROBABILITY
VOCABULARY
? Outcome – one possible result of a probability.
? Sample Space – the list of possible outcomes
for a probability event.
? Random – outcomes that occur at random if each
outcome is equally likely to occur.
? Simple Event – a specific outcome or type of
outcome.
? Complementary Events – the events of one
outcome happening and that outcomes not
happening are complimentary; the sum of the
probabilities of complementary events is 1.
REAL WORLD EXAMPLE:
Best Buy is having an IPOD giveaway. They put
all the IPOD Shuffles in a bag. Customers
may choose an IPOD without looking at the
color. Inside the bag are 4 orange, 5 blue, 6
green, and 5 pink IPODS. If Maria chooses
one IPOD at random, what is the probability
she will choose an orange IPOD?
P(orange) =
4
/
20
=
2
/
10
=
1
/
5
or 20%
WHAT IS A PROBABILITY?
- Probability is the chance that some event will
happen
- It is the ratio of the number of ways a certain
event can occur to the number of possible
outcomes
number of favorable outcomes
P(event) =
number of possible outcomes
Examples that use Probability:
(1) Dice, (2) Spinners, (3) Coins, (4) Deck of
Cards, (5) Evens/Odds, (6) Alphabet, etc.
Page 5

PROBABILITY
VOCABULARY
? Outcome – one possible result of a probability.
? Sample Space – the list of possible outcomes
for a probability event.
? Random – outcomes that occur at random if each
outcome is equally likely to occur.
? Simple Event – a specific outcome or type of
outcome.
? Complementary Events – the events of one
outcome happening and that outcomes not
happening are complimentary; the sum of the
probabilities of complementary events is 1.
REAL WORLD EXAMPLE:
Best Buy is having an IPOD giveaway. They put
all the IPOD Shuffles in a bag. Customers
may choose an IPOD without looking at the
color. Inside the bag are 4 orange, 5 blue, 6
green, and 5 pink IPODS. If Maria chooses
one IPOD at random, what is the probability
she will choose an orange IPOD?
P(orange) =
4
/
20
=
2
/
10
=
1
/
5
or 20%
WHAT IS A PROBABILITY?
- Probability is the chance that some event will
happen
- It is the ratio of the number of ways a certain
event can occur to the number of possible
outcomes
number of favorable outcomes
P(event) =
number of possible outcomes
Examples that use Probability:
(1) Dice, (2) Spinners, (3) Coins, (4) Deck of
Cards, (5) Evens/Odds, (6) Alphabet, etc.
What is a PROBABILITY?
0% 25% 50% 75%  100%
0 ¼ or .25   ½ 0r .5 ¾ or .75 1
Impossible Not Very     Equally Likely     Somewhat
Certain
Likely Likely
0 ¼ or .25 ½ 0r .5 ¾ or .75 1
Impossible Not Very
Likely
Somewhat
Likely
Equally
Likely
Certain
```

## Mathematics (Maths) Class 10

116 videos|420 docs|77 tests

## FAQs on Probability Class 10 PPT

 1. What is probability?
Ans. Probability is a measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 represents impossibility and 1 represents certainty.
 2. How is probability calculated?
Ans. Probability can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. This is known as the classical probability formula: P(A) = Number of favorable outcomes / Total number of possible outcomes.
 3. What are independent events in probability?
Ans. Independent events are events where the occurrence or non-occurrence of one event does not affect the occurrence or non-occurrence of another event. In other words, the probability of one event happening does not depend on the outcome of another event.
 4. What is conditional probability?
Ans. Conditional probability is the probability of an event occurring given that another event has already occurred. It is denoted as P(A|B), where A is the event of interest and B is the event that has already occurred. The formula for conditional probability is: P(A|B) = P(A ∩ B) / P(B).
 5. How can probability be used in real-life situations?
Ans. Probability is used in various real-life situations, such as weather forecasting, insurance, gambling, and medical diagnosis. It helps in making informed decisions by quantifying the likelihood of different outcomes. For example, probability can be used to predict the chances of rain, assess the risk of an insurance claim, or determine the probability of a disease based on symptoms.

## Mathematics (Maths) Class 10

116 videos|420 docs|77 tests

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