The profits of a mobile company are normally distributed with Mean of R.O (180) and standard...

The profits of a mobile company are normally distributed with Mean of R.O (180) and standard deviation of R.O (0.9).

a. Find the probability that a randomly selected mobile has a profit greater than R.O (190).

b. Any mobile phone which profit is greater than R.O (190) is defined as expensive. Find the probability that a randomly selected mobile has a profit greater than R.O (200) given that it is expensive.

c. Half of expensive mobile phones have a profit greater than R.O ℎ. Find the value of ℎ.

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thank you.

orchestra answered 1 year ago

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