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Alborosie
3 years ago
6

)Eve takes a random sample of 100 students in her school and finds that 82% of the sample prefers band over chorus. There are 1,

100 students in the school. Based on the sample proportion, how many students in the school would be expected to prefer band over chorus?
82
100
1,100
902
Mathematics
2 answers:
ivann1987 [24]3 years ago
8 0

Answer:

It is d

Step-by-step explanation:

Alexxandr [17]3 years ago
3 0
We multiplied 11 x 82 ( which was the percentage), based on 100 ppl and their is 11 times as many ppl. 11 x 82 is 902
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For f(x)= 3x+1 and g(x)= x^2-6, find (g/f)(x).
o-na [289]
D. The exclusion is important because we cannot divide by zero. Apart from that we are simply looking at a function. 
4 0
3 years ago
Read 2 more answers
Plisss help on my assesment
Anon25 [30]

Answer:

The first one is equivalent [the 6x+48 = 2(3x+24)] and the second one is <u>NOT</u> equivalent [the 7x+21 ≠ 2(5x+3)]

Step-by-step explanation:

Just follow distributive property to solve these. You can ignore the first expression in both until you have to compare the answers.

1. 6x+48 and 2(3x+24)

2(3x+24) ---> 2(3x) + 2(24) ---> <u>6x + 48</u>

Bring in the first expression ~ <u>6x+48 and 6x+48 </u>

They are the same, so they are equivalent

2. 7x+21 and 2(5x+3)

2(5x+3) ---> 2(5x) + 2(3) ----> 10x + 6

Bring in the first expression ~ <u>7x+21 and 10x + 6</u>

They are NOT the same, so they are NOT equivalent

6 0
3 years ago
A line passes through the points (-4,n) and (2,4n) and has the slope of 6. What’s the value of n?
Wittaler [7]

Not sure about this one sorry bud

4 0
2 years ago
A marketing researcher wants to find a 96% confidence interval for the mean amount those visitors spend per person per day while
ki77a [65]

Answer:

n=(\frac{2.054(12)}{4})^2 =37.97 \approx 38

So then the minimum sample to ensure the condition given is n= 38

Step-by-step explanation:

Notation

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

\sigma=12 represent the population standard deviation

n represent the sample size  

ME = 4 the margin of error desired

Solution to the problem

When we create a confidence interval for the mean the margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

And on this case we have that ME =4 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The critical value for 96% of confidence interval now can be founded using the normal distribution. The significance is \alpha=1-0.96 =0.04. And in excel we can use this formula to find it:"=-NORM.INV(0.02;0;1)", and we got z_{\alpha/2}=2.054, replacing into formula (b) we got:

n=(\frac{2.054(12)}{4})^2 =37.97 \approx 38

So then the minimum sample to ensure the condition given is n= 38

5 0
3 years ago
Which statement must be true
monitta

Answer:

(C)

Step-by-step explanation:

AD and BC are parallel to each other. They are the same distance but they never touch.  

Your best answer would be C.

Brainilest appreciated.

4 0
3 years ago
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