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2 years ago

I still nee help with this q9

Mathematics

1 answer:

katen-ka-za [31]2 years ago

6 0

Answer:

it is A

D"" (7,2)

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To start a board game, the player who rolls two sixes gets to go first. What is the probability that a player will roll two

Crank

Answer:

1 over 36

Step-by-step explanation:

4 0

3 years ago

Please help me I’m timed !

Kazeer [188]

Answer: B

I think......

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

The distribution of blood cholesterol level in the

qaws [65]

Answer: A. Mean of sampling means $=\mu=168\ Mg/dl$

Standard deviation of sampling means = $2.86\ mg/dl$

B. The probability that your sample has mean less than 165 is 0.1492 .

Given : The distribution of blood cholesterol level in the

population of young men aged 20 to 34 years is close to normal with

mean $\mu= 168$ Mg/dl and standard deviation $\sigma= 35$ mg/dl.

Sample size : n= 150

Let $\overline{x}$ sample mean values.

A. The mean and the standard deviation of the distribution of the sampling means would be :

Mean of sampling means = $\mu=168\ Mg/dl$

Standard deviation of sampling means = $\dfrac{\sigma}{\sqrt{n}}=\dfrac{35}{\sqrt{150}}$

$=\dfrac{35}{12.2474487}\\\\=2.85773803649\approx2.86\ mg/dl$

The probability that your sample has mean less than 165 would be

$P(\overline{x}$

Hence , the probability that your sample has mean less than 165 is 0.1492 .

7 0

3 years ago

The difference between the areas of the figures is less than 4.

goldfiish [28.3K]

The first is 4
The second one is
4=x-4
-x=-4-4
X=8

6 0

3 years ago

Will give brainly please help

weqwewe [10]

Answer:

x = 5/4

Step-by-step explanation:

5x - 6 = 4 - 3x

8x - 6 = 4

8x = 10

x = 5/4

The error is that -3x is moved across the = in an incorrect manner. You instead need to add the 3x across the = ending up with 5/4. Adding this across negates the negative which makes it 8x, the rest of the step are as follows.

6 0

3 years ago