Answered: The profits of a mobile company are…

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter14: Counting And Probability

Section14.2: Probability

Problem 3E: The conditional probability of E given that F occurs is P(EF)=___________. So in rolling a die the...

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The profits of a mobile company are normally distributed with Mean of R.O (17 x 10) and standard
deviation of R.O (D).
a. Find the probability that a randomly selected mobile has a profit greater than R.O ((17x10) +10).

b. Any mobile phone which profit is greater than R.O ((Dx10) +10) is defined as expensive. Find
the probability that a randomly selected mobile has a profit greater than R.O ((17x10) +20) given
that it is expensive.
c. Half of expensive mobile phones have a profit greater than R.O ℎ. Find the value of ℎ.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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