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3 years ago

9

Compute the mean, variance, and standard deviation for the following data set. Round all answers to the nearest tenth. {85,95,90

,70,75,95,85,85,95,90,70,75}

1 answer:

alexandr1967 [171]3 years ago

3 0

Mean: 84.1
You add all the numbers together and divide by the amount of numbers

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it taken 12 days for 10 men assemble a machine how long could it take for 15 men to assemble the machine?

fenix001 [56]

It will take 17 men to assemble a machine

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2 years ago

To mix plaster for a dental model, 45 milliliters (mL) of water are used for 100 grams (g) of plaster. How many milliliters (mL)

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2 years ago

Suppose that on the average, 7 students enrolled in a small liberal arts college have their automobiles stolen during the semest

strojnjashka [21]

Answer:0.9991

Step-by-step explanation:

The Poisson distribution probability formula is given by :-

$P(X=x)=\dfrac{e^{-\lambda}\lambda^x}{x!}$ , where \lambda is the mean of the distribution and x is the number of success

Given : $\lambda=7$

The probability that more than 1 student will have his automobile stolen during the current semester is given by :-

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Hence, the probability that more than 1 student will have his automobile stolen during the current semester =0.9991

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2 years ago

Find the volume of a pyramid with a square base, where the perimeter of the base is 10.1\text{ ft}10.1 ft and the height of the

rjkz [21]

Answer:

28.5 ft^3

58.3 m^3

Step-by-step explanation:

volume of a pyramid = 1/3 x length x width x height

Perimeter of a pyramid = 4 x length

10.1 = 4 x length

length = 10.1 / 4 = 2.525

1/3 x (2.525 x 2.525 x 13.4) = 28.5 ft^3

1/3 x (6.1 x 6.1 x 4.7) = 58.3 m^3

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

8 0

2 years ago

Use the distributive property to create an equivalent expression to 7(2j + 3 + 2j).

Scorpion4ik [409]

Answer:

28j + 21

Step-by-step explanation:

combine like terms

7(2j+ 3+ 2j)

7(4j+3)

Distribute

7(4j + 3)

=

28j + 21

6 0

2 years ago

Read 2 more answers