3 years ago

Using intervals of width 10, how many intervals

Mathematics

1 answer:

sergey [27]3 years ago

6 0

Answer:

Step-by-step explanation:

The answer is 25 or more so basically it’s answer choice D

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Find the surface area of this triangular prism.<br> 3 cm<br> 5 cm<br> 11 cm<br> 4 cm

blondinia [14]

Step-by-step explanation:

The area of a triangular pyramid is 5 cm.

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3 years ago

For which data set would the median be a better measure of center than the mean?

Montano1993 [528]

Answer:

I think D but I'm not 100 percent certain

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3 years ago

xP(x)00.2510.0520.1530.55Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal pl

Nookie1986 [14]

The Solution:

Given:

Required:

Find the standard deviation of the probability distribution.

Step 1:

Find the expected value of the probability distribution.

$E(x)=\mu=\sum_{i\mathop{=}0}^3x_iP_(x_i)$ $\begin{gathered} \mu=(0\times0.25)+(1\times0.05)+(2\times0.15)+(3\times0.55) \\ \\ \mu=0+0.05+0.30+1.65=2.0 \end{gathered}$

Step 2:

Find the standard deviation.

$Standard\text{ Deviation}=\sqrt{\sum_{i\mathop{=}0}^3(x_i-\mu)^2P_(x_i)}$ $=(0-2)^2(0.25)+(1-2)^2(0.05)+(2-2)^2(0.15)+(3-2)^2(0.55)$ $=4(0.25)+1(0.05)+0(0.15)+1(0.55)$ $=1+0.05+0+0.55=1.60$

Thus, the standard deviation is 1.60

Answer:

1.60

8 0

1 year ago

Mike had a balance of $81 on his credit card for a department store. After purchasing 3 sweaters, his new balance was $146.85. H

LiRa [457]

Answer:

$243

Step-by-step explanation:

81 x 3= 243 I'm pretty sure.

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3 years ago

What is -9.25 as a faction

melamori03 [73]

Answer:

-37 / 4

Step-by-step explanation:

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3 years ago