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Alisiya [41]
2 years ago
6

Scores on IQ tests are normally distributed, with a mean of 100 and a standard deviation of 15. What is the score such that 10 p

ercent of people taking the test achieve a higher score
Mathematics
1 answer:
Studentka2010 [4]2 years ago
3 0

Answer:

103.75 score

Step-by-step explanation:

10 % scored higher than the mean?

 50% is the mean %   so we need to look for the z score corresponding to 60 %    from z-score table   this is z-score of   .25

.25 standard deviations (which is 15)   above 100 =

    .25  * 15       +   100 = 103.75   score

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What percent of the volunteers was at least 15 years old but no more than 24 years old?
viva [34]

Answer:

i think it is 1% sry if wrong  

Step-by-step explanation:

4 0
3 years ago
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Tell whether the ordered pair is a solution to the system of linear equations. 1 point
viktelen [127]

Answer:

(5,-6) is a solution

Step-by-step explanation:

Given

6x + 3y = 12

4x + y = 14

Required

Tell whether (5,-6) is a solution

In (5,-6): x = 5 and y = -6.

Substitute these values in the given equations

6x + 3y = 12 becomes

6 * 5 + 3 * -6 = 12

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4 * 5 - 6 = 14

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8 0
3 years ago
What are the rigid transformations that will map AABC to ADEF?​
asambeis [7]

Answer:

A tranlation and a rotaion.

Step-by-step explanation:

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6 0
3 years ago
1. What is the period of the sinusoidal function? Please help thank you
Fittoniya [83]

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3 years ago
NEED QUICKLY <br> Write the equation of the line shown below?
grandymaker [24]

y = x + 2

Step-by-step explanation:

General formula for any straight line:

y = mx + c

Where

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c = constant

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m = 6/6

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y = mx + c

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8 0
3 years ago
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