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kolbaska11 [484]
3 years ago
12

9. During the soccer season, Michelle attempted 130 goals and made about 70% of them. a. How many goals did Michelle make? b. Th

e team made a total of 456 goals.
What percent of the team’s made goals did Michelle make?
13 goals 2.85%
39 goals; 85.5%
91 goals; 19.96%
101 goals; 22.15%
10. What percent of 25 is 10? (1 point)
10 = x • 25; 40%
10 = x • 25; 250%
25 = x • 10; 4%
25 = x • 10; 250%
Mathematics
1 answer:
krok68 [10]3 years ago
6 0
9. C :)
10. A :)

Hope this helps!
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Answer:

The standard deviation of the given data is 11.34.

Step-by-step explanation:

We have to find the standard deviation for the given data;

Grade on     No. of students          

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   Total             <u>      91       </u>                <u>    7531     </u>                       <u>    11580.68    </u>

Firstly, the mean of the above data is given by;

            Mean, \bar X  =  \frac{\sum X \times f}{\sum f}

                             =  \frac{7531}{91}  =  82.76

Now, the standard deviation of the data is given by;

          Standard deviation, S.D.  =  \sqrt{\frac{\sum f(X-\bar X)^{2} }{\sum f-1}}

                                                     =  \sqrt{\frac{11580.68}{91-1}}

                                                     =  11.34

Hence, the standard deviation of the given data is 11.34.

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