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3 years ago

11

Please help.....................................................................................................................

..............................

2 answers:

pantera1 [17]3 years ago

5 0

The answer is high I believe.

IRISSAK [1]3 years ago

5 0

The answer is high) because its like higher

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Find the standard deviation of 21, 31, 26, 24, 28, 26

Vesnalui [34]

Given the dataset

$x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}$

We start by computing the average:

$\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26$

We compute the difference bewteen each element and the average:

$x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}$

We square those differences:

$(x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}$

And take the average of those squared differences: we sum them

$\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69$

And we divide by the number of elements:

$\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5$

Finally, we take the square root of this quantity and we have the standard deviation:

$\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39$

8 0

3 years ago

Convert the following decimal to a common fraction. Reduce to lowest terms 0.625 = 62/100 7/8 5/8 6 2/5

VashaNatasha [74]

Answer:

the answer would be 5/8

Step-by-step explanation:

0.625/1 times 1000/1000= 625/1000

625/1000 divided by 125 = 5/8

hoped this helped let me know if you got it right

3 0

3 years ago

A spinner has 10 10 equal-sized sections. Six Six of the sections are purple purple. a. What is the probability that the spinne

borishaifa [10]

Answer:

P(Spinner lands on purple section) = 0.6 = 60%

Step-by-step explanation:

We are given the following in the question:

Number of sections = 10

Number of purple sections = 6

$\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}$

a) probability that the spinner will land on purple purple

P(purple) =

$=\dfrac{6}{10} = 0.6$

0.6 is the probability that the spinner will land on purple purple.

b) Interpretation of probability

$0.6\times 100\% = 60\%$

There is a 60% chance that the spinner will land on purple color.

7 0

2 years ago

Find the value of tan π/12.

kompoz [17]

Pi/12 radians = 180/12 degrees = 15 degrees

tan(15 degrees) = 0.2679... (rounded)

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3 years ago

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Which function has a minimum and is transformed to the right and down from the parent function, f(x) = x2?

katovenus [111]

G(x)=8(x2-6x)-5 its positive and it goes down.

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3 years ago

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