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MaRussiya [10]
3 years ago
12

Ill give brain if you answer

Mathematics
2 answers:
nordsb [41]3 years ago
8 0

Answer:

3/2x

Step-by-step explanation:

the answer is 3/2x

Lina20 [59]3 years ago
3 0

Answer:

3/2x is your final answer .

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Step-by-step explanation:

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I need HELP please!!!!
svlad2 [7]

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Step-by-step explanation:

Multiply 6 and 15 then you get 90 the you do 6x6 you get 36

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4 years ago
Although bats are not known for their eyesight, they are able to locate prey (mainly insects) by emitting high-pitched sounds an
Sergeu [11.5K]

Answer:

Mean = 48.6364

s^2 = 331.8545 -- Sample Variance

s = 18.2169 --- Sample Standard Deviation

Step-by-step explanation:

Given

n = 11

Data: 24, 41 ,25 ,68 ,53 ,83 ,43 ,63 ,56 ,34 ,45

Solving (a): The sample mean

Mean = \frac{\sum x}{n}

So:

Mean = \frac{24 +41 +25 +68 +53 +83 +43 +63 +56 +34+ 45}{11}

Mean = \frac{535}{11}

Mean = 48.6364

Solving (b): Sample variance (s^2)

This is calculated as:

s^2 = \frac{\sum (x - \bar x_i)^2}{n - 1}

Where:

\bar x = 48.6364

So:

s^2 = \frac{(24 -48.6364)^2 +(41  -48.6364)^2 +......................+( 45 -48.6364)^2}{11-1}

s^2 = \frac{3318.54545456}{10}

s^2 = 331.8545

Solving (c): Sample Standard Deviation (s)

This is calculated as:

s = \sqrt {s^2

s = \sqrt{331.8545

s = 18.2169

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