Probability Test

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Probability Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following names does not represent an experiment?

A
Throwing a die

B
Tossing two coins

C
Getting a king from a pack of well shuffled cards

D
Drawing a ball from a bag containing 5 red balls and 6 blue balls

Solution

Throwing a die, tossing two coins and drawing a ball from a bag containing 5 red balls and 6 blue balls are experiments, whereas getting a king from a pack of well shuffled cards is the outcome of an experiment.

Thus, alternative C does not represent any experiment.
Question 2
1 / -0

Use the following information to answer the next question.

Miranda has two pairs of trousers, four pairs of jeans and one skirt.

The probability that she wears the skirt to her friend’s birthday party is

A
1/5

B
2/5

C
2/7

D
1/7

Solution

Miranda may choose from 2 pairs of trousers, 4 pairs of jeans and a skirt

Total choices = 2 + 4 + 1 = 7

⇒ The probability that she wears the skirt = 1/7
Question 3
1 / -0

Alarm clocks are sold in red or orange with either digital or standard displays. What is the sample space of this data?

A
{red digital, orange digital}

B
{orange digital, red standard}

C
{red digital, orange standard}

D
{red digital, orange digital, red standard, orange standard}

Solution

There are two colour options, red and orange.
Also, there are two types of displays, digital and standard.
Thus, sample space of the data = {red digital, orange digital, red standard, orange standard}
Question 4
1 / -0

Use the following information to answer the next question.

In a jar, there are 8 yellow balls, 10 red balls, 13 blue balls, and 15 black balls. One ball is randomly taken out from the jar.

The ball, which is taken out of the jar, is least likely to be of which color?

A
Red

B
Blue

C
Yellow

D
Black

Solution

Yellow balls are the smallest in number among balls of all the colors in the jar. Therefore, they are the least likely to be picked in one pick.
Question 5
1 / -0

Use the following information to answer the next question.

In a basket, there are eight apples, five oranges, three guavas, and two strawberries. Jane picks one of the fruits at random from the basket.

Which fruit is least likely to be picked by Jane?

A
Guava

B
Orange

C
Apple

D
Strawberry

Solution

As strawberry is the fruit which is least in number in the basket, it is the one that is least likely to be picked up.
Question 6
1 / -0

Betty has 16 wrapping papers out of which 3 are red, 6 are blue, 4 are green, 2 are yellow and 1 is white in color. To pack a gift, she randomly selects a wrapping paper. Which colored wrapping paper is most likely to be chosen?

A
Red

B
Blue

C
Green

D
Yellow

Solution

Number of red colored wrapping papers = 3

Number of blue colored wrapping papers = 6

Number of green colored wrapping papers = 4

Number of yellow colored wrapping papers = 2

Number of white colored wrapping papers = 1

Therefore, among 16 wrappers, the blue-colored paper is the greatest in number. So, the blue color is most likely to be chosen.

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Re-Attempt Weekly Quiz Competition

Probability Test - 1

Result

Probability Test - 1

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SHARING IS CARING

Question 1

Throwing a die

Tossing two coins

Getting a king from a pack of well shuffled cards

Drawing a ball from a bag containing 5 red balls and 6 blue balls

Solution

Question 2

1/5

2/5

2/7

1/7

Solution

Question 3

{red digital, orange digital}

{orange digital, red standard}

{red digital, orange standard}

{red digital, orange digital, red standard, orange standard}

Solution

Question 4

Red

Blue

Yellow

Black

Solution

Question 5

Guava

Orange

Apple

Strawberry

Solution

Question 6

Red

Blue

Green

Yellow

Solution

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Question Analysis

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