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irga5000 [103]
3 years ago
6

The incomes in a certain large population of college teachers have a Normal distribution, with mean $75,000 and standard deviati

on $10,000. Sixteen teachers are selected at random from this population to serve on a committee. What is the probability that their average salary is more than $77,500?
Mathematics
2 answers:
Natali [406]3 years ago
8 0

Answer:

probability that their average salary is more than $77,500 is 0.1587

Step-by-step explanation:

standard error

= 10,000/sqrt(16)

=10,000/4

= 2500 

(77,500 - 75000)/2500

2,500/2500

= 1 

p (z > 1) = .1587

So, the probability that their average salary is more than $77,500 is 0.1587

Marizza181 [45]3 years ago
6 0

Answer:

probability that their average salary is more than $77,500 is 0.1587

Step-by-step explanation:

If my answer qualifies please mark brainliest!

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Answer:

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Step-by-step explaination

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3 years ago
What is the solution to the system of equations that contains −3x + y = 3 and 2x − y = −1? no solution (−1, 3) infinite number o
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Answer:

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Step-by-step explanation:

5 0
3 years ago
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sergiy2304 [10]

Answer:

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3 0
3 years ago
Help me with this question
MA_775_DIABLO [31]

<em>Answer: C</em>

<em />

<em />

<em>It is C because when there is a line at the top of the number, it is infinite and repeats many times. That number in a shorter was can be written as a fraction over 990. Two of the answer choices has 990 in it which is letters B and C. This eliminates answer choices A and D. The number that is within the dot is your numerator (645) and 990 is your denominator. Overall the answer is 645/990</em>

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3 years ago
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amm1812
The answer is C to this question

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