Question

30 points answer correctly ----- What is the missing probability in this probability distribution? interval 0-10 11-20 21-30 31-40 41-50 probability 0.105 0.255 ? 0.301 0.214

answers 1.125 0.119 0.125 0.012

Answer 1

All the values of a probability distribution can only add up to 1, as 1 represents all the occurrences of all probabilities happening.

Subtract the known probabilities from 1:

$1 - (0.105 + 0.255 + 0.301 + 0.214)$

$1 - 0.875 = 0.125$

The missing probability is 0.125.

Answer 2

The probability of the missing interval is 0.125, the correct option is C.

What is Probability?

Probability is the measure of the likeliness of an event to happen.

The probability has a range from 0 to 1, 0 denotes uncertainty and 1 indicates certainty.

The probability for the interval 0-10 is 0.105

The probability for the interval 11-20 is 0.255

The probability for the interval 21-30 is ?

The probability for the interval 31-40 is 0.301

The probability for the interval 21-30 is 0.214

It is known that the sum of the probabilities is equal to 1.

The Probability for the interval 21 -30 is,

1 - ( 0.105 + 0.255+ 0.301+ 0.214)

1 - 0.875

0.125

The probability for the interval 21-30 is 0.125.

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