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Elza [17]
3 years ago
6

The salaries of pharmacy techs are normally distributed with a mean of $32,000 and a standard deviation of $3,000. If a pharmacy

tech is selected at random, what is the probability they make more than $39,000?
Mathematics
1 answer:
Law Incorporation [45]3 years ago
5 0

Answer:

The probability is  P( X >  39000) =0.01

Step-by-step explanation:

From the question we are told that

   The mean is  \mu = \$ 32000

    The standard deviation is \sigma = \$ 3000

Generally the probability that they make more than $39,000 is mathematically represented as

         P( X >  39000) = P( \frac{X - \mu }{\sigma }  > \frac{39000 - 32000}{3000} )

 \frac{X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ X )

          P( X >  39000) = P(Z > 2.33 )

From the z table  the area under the normal curve to the right corresponding to  2.33  is      

         P(Z > 2.33 ) = 0.01

So

         P( X >  39000) =0.01

     

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I need the mid point
Anestetic [448]

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(14,\frac{-7}{2})

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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  4. Multiplication
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  • Left to Right

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Step-by-step explanation:

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Point (10, -20)

<u>Step 2: Find Midpoint</u>

Simply plug in your coordinates into the midpoint formula to find midpoint

  1. Substitute [MF]:                    (\frac{18+10}{2},\frac{13-20}{2})
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7 0
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The probability of event X is 30%. The probability of event Y is 40%. If events X and Y are mutually exclusive, what is the prob
Soloha48 [4]

The probability of event X or Y is P = 0.7, or, in percentage form, the probability is 70%.

<h3>How the get the probability of event X or Y?</h3>

First, two events are mutually exclusive if these events can't happen at the same time.

This means that if happens X, with a 30% of probability, then Y can't happen.

If happens Y, with a 40% of probability, then X can't happen.

Then the probability of X or Y (the probability that one of these two events happens, not both) is just the addition of the two individual probabilities.

Then we have:

P(X or Y) = 0.3 + 0.4 = 0.7

Or, in percent form, we get:

P(X or Y) = 70%

The probability of event X or Y is just 70%.

If you want to learn more about probability:

brainly.com/question/25870256

#SPJ1

7 0
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