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3 years ago

Which of the following statements describes the value of the expression 35 – 2x, when x = 6?

Mathematics

2 answers:

Alex Ar [27]3 years ago

5 0

Answer:

35-2(6)

= 23

Prime number

Step-by-step explanation:

MAXImum [283]3 years ago

3 0

Answer:

23 . It is a prime number.

Step-by-step explanation:

$35 - 2x \\ x = 6 \\ \\ 35 - 2(6) \\ = 35 - 12 \\$

Simplify

$23$

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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

Find the mode of the following data set.

ivolga24 [154]

The mode is the number that shows up the most.

In the dataset, note that the stem should be in the tens place, and the different number of leaves are in the ones place.

62 shows up one more time than all the other numbers, and so 62 is your answer.

Hope this helps

8 0

2 years ago

Read 2 more answers

How much is 74 divided by 4

exis [7]

Answer:

18.5

Step-by-step explanation:

6 0

2 years ago

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Help please need to be done now