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An intelligence test used in a particular country has scores which are normally distributed with mean 100 and standard deviatio...Asked by Anonymous
. An intelligence test used in a particular country has scores which are normally distributed with
mean 100 and standard deviation 15. In a randomly selected group of 500 people sitting the test,
estimate how many have a score
(i) higher than 140
(ii) below 120
(iii) between 100 and 110
(iv) between 85 and 90.
mean 100 and standard deviation 15. In a randomly selected group of 500 people sitting the test,
estimate how many have a score
(i) higher than 140
(ii) below 120
(iii) between 100 and 110
(iv) between 85 and 90.
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