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lord [1]
3 years ago
12

PLZ HURRY IT'S URGENT!!!!!

Mathematics
1 answer:
Korvikt [17]3 years ago
4 0

Answer:

the answer you are looking for is -11s

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A graduate school entrance exam has scores that are normally distributed with a mean of 560 and a standard deviation of 90. What
9966 [12]

26.8% of examinees will score between 600 and 700.

This question is based on z score concept.

A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of values. Z-score is measured in terms of standard deviations from the mean. If a Z-score is 0, it indicates that the data point's score is identical to the mean score.

z={x-\mu  \over \sigma }

where:

μ is the mean

σ is the standard deviation of the population

Given:

μ = 560

σ = 90

For

600≤ X≤700

for x = 700

Z score =x - μ/σ

=(700 - 560)/90

      = 1.55556

P-value from Z-Table:

P(560<x<700) = P(x<700) - 0.5 = 0.44009

for x = 600

Z score =x - μ/σ

=(600 - 560)/90

      = 0.44444

P-value from Z-Table:

P(560<x<600) = P(x<600) - 0.5 = 0.17164

∴ P(600<x<700) = P(560<x<700) - P(560<x<600)

                           = 0.44009 - 0.17164

                          =0.26845

∴26.8% percentage of examinees will score between 600 and 700.

Learn more about Z score here :

brainly.com/question/15016913

#SPJ4

4 0
1 year ago
Is y = 0 the asymptote of all functions of the form f(x) = ab^x? Explain your reasoning.
xeze [42]
Y=0 would be a horizontal line.  An asymptote is a line that a function approaches, but never reaches.  Exponential functions such as these are a smooth curve.  If both numbers are positive numbers greater than or equal to 1, the curve increases.  If at least one of the numbers is a positive number between 0 and 1, the curve decreases.  If <em>a</em> is a negative number, the curve decreases as well.  If either <em>a</em> or <em>b</em> is zero, then the graph would stay constant at 0.  However, as long as neither <em>a</em> nor <em>b</em> is zero, then this graph will never touch that point.  The only way to get an answer of y=0 is to multiply by 0.  If neither <em>a</em> nor <em>b</em> is zero, this won't happen.
6 0
2 years ago
HELP ASAP
Westkost [7]

Answer:

(5 1/2)(7.25)=

11/2(7.25)

=39.875

=39.875

Step-by-step explanation:

multiply 5 1/2 by 7.25 and u will have yo answer

5 0
3 years ago
Read 2 more answers
U
Romashka-Z-Leto [24]
Discrimination 100 the real answer is that and it will not make since at dirt but it is have a good day
6 0
3 years ago
Which choice is equivalent shown here x less than 0?
Usimov [2.4K]

Which choice is equivalent shown here x less than 0?

ANSWER:

D.

EXPLANATION:

I hope its help

6 0
2 years ago
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