2 years ago

Question 1 (1 point)

Mathematics

1 answer:

ruslelena [56]2 years ago

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You’re answer is A for that question

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Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest t

vitfil [10]

Answer: The mean of the data is 433.75, variance of the data is 99667.19 and the standard deviation of the data is 315.7011.

Explanation:

The given data is 900, 35, 500 and 300.

The number of observation is 4.

Formula of mean is,

$\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}$

$\bar{X}=\frac{900+35+50+300}{4} =433.75$

The formula of variance is given below,

$\sigma^2=\frac{1}{n}\sum{(X-\bar{X})^2}$

$\sigma^2=\frac{398668.75}{4}$

$\sigma^2=99667.19$

The variance of the data is 99667.19

$\sigma=\sqrt{99667.19}$

$\sigma=315.7011$

The standard deviation of the data is 315.7011.

The other information or values of given chart is shown in the attached table.

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2 years ago

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One inch corresponds to 8 feet on an architects blueprint. Find the actual length of a wall represented by 4 1/2 inches on the b

agasfer [191]

Answer:

36 feet

Explanation:

8 feet : 1 inch = 36 feet : 4.5 inches

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2 years ago

Write an equation in slope-intercept form of the line shown (1,-9) , (-3,-9)

vlabodo [156]

Answer:

y = -9

Step-by-step explanation:

y2 - y1 / x2 - x1

-9 - (-9) / -3 - 1

0 / -4

y = 0 + b

-9 = b

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1 year ago

Provide a real life algebra situation that has one solution (i.e. 3x = 6)

Sholpan [36]

3(x)=6
3(2)=6
which says 6=6

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The price of a pair of Jordans was reduced from $200 to $160. By percentage was the price reduced

hichkok12 [17]

Answer:

20%

Step-by-step explanation:

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