Paul bought a student discount card for the bus. the card cost $7 and allows him to buy daily bus passes for $1.50. after a mont
1 answer:
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Answer: a. 0.6759 b. 0.3752 c. 0.1480
Step-by-step explanation:
Given : The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes
i.e. minutes
minutes
Let x be the long-distance call length.
a. The probability that a call lasts between 5 and 10 minutes will be :-
b. The probability that a call lasts more than 7 minutes. :
c. The probability that a call lasts more than 4 minutes. :
Answer:
Step-by-step explanation:
Given : Expression =
Simplifying the expression :
Step 1. Write the expression =
Step 2. Add the similar elements:
=
Step 3. Add the similar elements:
=
Therefore, is the simplified form of