A number is selected at random from the numbers 7,3,9,7,9,5,7,9,9,5.

1.	A number is selected at random from the numbers 7,3,9,7,9,5,7,9,9,5. The probability that the selected number is their average is ...........
Answer» Average of given numbers = (7+3+9+7+9+5+7+9+9+5)/10 = 70/10 = 7 Required probability of getting 7 P(7) = 3/10 The probability that the selected number is average is 3/10 Explanation: Total no. of numbers = 10 Average of numbers = sum of numbers / total no. of numbers = (7+3+9+7+9+5+7+9+9+5) / 10 = 7 Probability of getting this number(which obtained from average i.e. 7) = no. of 7's / total outcomes = 3/10

A number is selected at random from the numbers 7,3,9,7,9,5,7,9,9,5. The probability that the selected number is their average is ...........

Answer»

Average of given numbers = (7+3+9+7+9+5+7+9+9+5)/10 = 70/10 = 7

Required probability of getting 7 P(7) = 3/10

The probability that the selected number is average is 3/10

Explanation:

Total no. of numbers = 10

Average of numbers =
sum of numbers / total no. of numbers =
(7+3+9+7+9+5+7+9+9+5) / 10 = 7

Probability of getting this number(which obtained from average i.e. 7)
= no. of 7's / total outcomes = 3/10

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A number is selected at random from the numbers 7,3,9,7,9,5,7,9,9,5. The probability that the selected number is their average is ...........

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