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3 years ago

Can one of you lovely people help me please ?

Mathematics

2 answers:

In-s [12.5K]3 years ago

5 0

22.82! Is the correct answer

saveliy_v [14]3 years ago

4 0

Answer:

the answer is

C. = x=22.82

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A government sample survey plans to measure the LDL (bad) cholesterol level of an SRS of men aged 20 to 34.

svet-max [94.6K]

Answer:

The sampling distribution of x is N(118, 2.5).

Step-by-step explanation:

We have that:

The mean of the population is $\mu = 118$

The standard deviation of the population is $\sigma = 25$ .

(a) Choose an SRS of 100 men from this population. What is the sampling distribution of x? (Use the units of mg/dL.)

The mean of the sampling distribution is the same as the mean of the population.

The standard deviation of the sampling distribution is the standard deviation of the population divided by the square root of the sample size. So

$s = \frac{25}{\sqrt{100}} = 2.5$

This means that the sampling distribution of x is N(118, 2.5).

7 0

3 years ago

1/9 - is rational or irrational number<br>

Nataly [62]

Answer:

1/9 is a rational number because rational numbers are numbers that you can write as a fraction.

8 0

3 years ago

Simplify -12w + 7w - 3 - 6

aleksley [76]

Answer: Hi!

We can simplify this by combining like terms:

-12w + 7w <em>- 3 - 6</em>

-12w + 7w = -5w

-3 - 6 = -9

Out equation now looks like this:

-5w - 9

There's nothing left to simplify, so we're done!

Hope this helps!

6 0

3 years ago

25% of the tickets sold at a school carnival were early-admission tickets. If the school sold 32 tickets in all, how many early-

Hoochie [10]

No it wouldn’t i judaic did

5 0

3 years ago

A rectangle has a perimeter of 18. If the length is 4 what is the width

Irina18 [472]

Answer:

The width is 5.

Step-by-step explanation:

2(4)+2w=18

8+2w=18

2w=18-8

2w=10

w=10/2

w=5

5 0

4 years ago