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nikklg [1K]
3 years ago
9

Can someone please help me with this question I’m stuck on

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
6 0

Answer:

The answer is option D.

Hope this helps

Rom4ik [11]3 years ago
3 0

Answer:

D

Step-by-step explanation:

X-5 is not a factor because is a reminder and 5 is not a zero because

p ( 5)=4

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A large manufacturing firm tests job applicants who recently graduated from college. The test scores are normally distributed wi
Sergeeva-Olga [200]

Answer:

The lowest score a college graduate must be 577.75 or greater to qualify for a responsible position and lie in the upper 6%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 500

Standard Deviation, σ = 50

We are given that the distribution of test score is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.06.

P(X > x)  = 6% = 0.06

P( X > x) = P( z > \displaystyle\frac{x - 500}{50})=0.06  

= 1 - P( z \leq \displaystyle\frac{x - 500}{50})=0.06  

=P( z \leq \displaystyle\frac{x - 500}{50})=1-0.06=0.94  

Calculation the value from standard normal z table, we have,  

P(z < 1.555) = 0.94

\displaystyle\frac{x - 500}{50} = 1.555\\x = 577.75  

Hence, the lowest score a college graduate must be 577.75 or greater to qualify for a responsible position and lie in the upper 6%.

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in a town, 11 000 people out of the total population of 50 000 are aged under 18. What percentage of the population is aged unde
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