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____ [38]
3 years ago
15

Here are the iq test scores of 31 seventh-grade girls in a midwest school district: 114 100 104 89 102 91 114 114 103 105 108 13

0 120 132 111 128 118 119 86 72 111 103 74 112 107 103 98 96 112 112 93 these 31 girls are an srs of all seventh-grade girls in the school district. suppose that the standard deviation of iq scores in this population is known to be σ = 15. we expect the distribution of iq scores to be close to normal. estimate the mean iq score for all seventh-grade girls in the school district, using a 99% confidence interval.
Mathematics
1 answer:
Darya [45]3 years ago
6 0
Not really sure what the question is
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Divide and simplify. √36 x⁴ / √9 x⁶
Vikki [24]

The divide and simplify of the equation √36 x⁴ / √9 x⁶ will result to  \frac{2}{x^{2} }

Let's begin by simplifying the equation;

Simplify the equation by finding the square root of both 36 and 9

The square root of 36= 6

The square root of 9= 3

= \frac{6x^{4} }{3x^{6} }

The above equation can also be written as;

=  6x^{4}  * 3x^{-6}

The next step is to solve the powers, that is,

=   \frac{6x^{4} }{3x^{6} }

Cancel out 6 by 3 and get  2

The result is,  

=  \frac{2}{x^{6-4} }

The final submission result is,

=  \frac{2}{x^{2} }

To find more on divide and simplify, go to: brainly.com/question/16356152

#SPJ4  

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Step-by-step explanation:

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