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3 years ago

13

The following table represents the running times of the men's 100 meters final at the London Olympics.

2 answers:

Rom4ik [11]3 years ago

8 0

This cannot be fit into a normal distribution. While the first 7 runners all have times relatively close, the time of the last runner is an outlier, as it is too far from the other data points. The standard deviation is calculated by taking the mean, subtracting each value from the mean, squaring the deviations, adding these, then dividing by the number of data points (7), and taking the square root. This gives an answer of SD = 0.1107.

olga_2 [115]3 years ago

7 0

Answer:

No it can not be fit into standard distribution.

The standard deviation is 155.96

Step-by-step explanation:

Standard Deviation:

1. Calculate Mean

2. Subtract the mean from each value in the data set

3. Square the differences

4. Take the average

5. Take the square root of the variance(average)

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The black graph is the graph of y=f(x). Choose the equation for the red graph.<br> Please help!!

yan [13]

Answer:

B

Step-by-step explanation:

The black graph is the graph of y=f(x).

The red graph is the reflection of the black graph across the y-axis.

A. $y=f(x-1)$ determines the translation of the graph $y=f(x)$ one unit to the right.

B. $y=f\left(\dfrac{x}{-1}\right)$ determines the reflection of the graph $y=f(x)$ across the y-axis.

C. $y-1=f(x),\ y=f(x)+1$ determines the translation of the graph $y=f(x)$ one unit up.

D. $\dfrac{y}{-1}=f(x),\ y=-f(x)$ determines the reflection of the graph $y=f(x)$ across the y-axis.

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2 years ago

Solve this equation. (3x+10)−(2x−9)=43

Rus_ich [418]

Answer: X = 24

Step-by-step explanation:

Move all terms to the left:

(3x + 10) - (2x - 9) - 43 = 0

Get rid of all the parenthesis:

3x + 10 - 2x - 9 - 43 = 0

Add all the numbers and all variable:

x-24 = 0

Move all terms containing x to the left and all other terms to the right:

x = 24

4 0

2 years ago

Read 2 more answers

Find the mean of the following data set.<br><br> 42, 45, 58, 63

MakcuM [25]

The mean is 52 because 42+45+58+63=208 then you divide it by the amount of numbers: 4 : 208 divided by 4= 52

8 0

2 years ago

X^2-2xy+y2 is a polynomial of ___________variable?

fgiga [73]

Answer:

x and y

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What is an equivalent expression for the quotient? 4²/4⁵

Lisa [10]

Answer:

$\frac{1}{ {4}^{3} }$

Step-by-step explanation:

$\frac{ {4}^{2} }{ {4}^{5} } = \frac{1}{ {4}^{ - 2} \times {4}^{5} } = \frac{1}{ {4}^{(5 - 2)} } = \frac{1}{ {4}^{3} }$

8 0

3 years ago