Statistics & Probability

Data handling, mean, variance, probability, and distributions.

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QUESTION NO 01

Variance measures?

Answer: Spread of data around the mean

Variance is average squared deviation from the mean.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 02

In a fair die, P(rolling 6) = ?

Answer: 1/6

One favorable outcome out of six.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

A fair coin P(heads) = ?

Answer: 1/2

Two equally likely outcomes.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 04

Mean of 2, 4, 6 is?

Answer: 4

(2+4+6)/3 = 4.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

P(A) + P(Aᶜ) = ?

Answer: 1

An event and its complement partition the sample space.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 06

Mode of 2, 2, 3, 4 is?

Answer: 2

2 appears most often.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 07

Range of data 3, 7, 10 is?

Answer: 7

Range = max − min = 10 − 3 = 7.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

Probability of a sure event is?

Answer: 1

A certain event has probability 1.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 09

Probability of an impossible event is?

Answer: 0

Impossible ⇒ P = 0.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

Median of 1, 3, 5, 7, 9 is?

Answer: 5

Middle value of ordered list is 5.

Shahzad Mahota @shahzad-mahota

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Statistics & Probability

More topics in Mathematics

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Algebra

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Statistics & Probability

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Variance measures?

In a fair die, P(rolling 6) = ?

A fair coin P(heads) = ?

Mean of 2, 4, 6 is?

P(A) + P(Aᶜ) = ?

Mode of 2, 2, 3, 4 is?

Range of data 3, 7, 10 is?

Probability of a sure event is?

Probability of an impossible event is?

Median of 1, 3, 5, 7, 9 is?

Statistics & Probability

More topics in Mathematics

All

Algebra

Arithmetic

Calculus

Geometry

Statistics & Probability

Trigonometry

Explore

Variance measures?

Explanation

In a fair die, P(rolling 6) = ?

Explanation

A fair coin P(heads) = ?

Explanation

Mean of 2, 4, 6 is?

Explanation

P(A) + P(Aᶜ) = ?

Explanation

Mode of 2, 2, 3, 4 is?

Explanation

Range of data 3, 7, 10 is?

Explanation

Probability of a sure event is?

Explanation

Probability of an impossible event is?

Explanation

Median of 1, 3, 5, 7, 9 is?

Explanation