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arlik [135]
3 years ago
14

Can some one help me plz

Mathematics
1 answer:
borishaifa [10]3 years ago
7 0
What one do u need help on
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I need it ASAP please help!!
alekssr [168]

Answer:

5,4,6,-7

Step-by-step explanation:

The y's are range

4 0
3 years ago
Which is equivalent to cos^-1(0) answer in radian
ruslelena [56]

Answer:

Step-by-step explanation:

cos ^-1(0)=(2n+1) π/2

where n is an integer.

if 0 ≤α ≤2 π

n=0,1

cos ^-1(0)=π/2,3π/2

8 0
3 years ago
A survey of 200 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take
Lina20 [59]

Answer:

The 95% confidence interval for the true proportion of university students who use laptop in class to take notes is (0.2839, 0.4161).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population proportion <em>P</em> is:

CI=p\pm z_{\alpha/2}\sqrt{\frac{p(1- p)}{n}}

The information provided is:

<em>x</em> = number of students who responded as"yes" = 70

<em>n</em> = sample size = 200

Confidence level = 95%

The formula to compute the sample proportion is:

p=\frac{x}{n}

The R codes for the construction of the 95% confidence interval is:

> x=70

> n=200

> p=x/n

> p

[1] 0.35

> s=sqrt((p*(1-p))/n)

> s

[1] 0.03372684

> E=qnorm(0.975)*s

> lower=p-E

> upper=p+E

> lower

[1] 0.2838966

> upper

[1] 0.4161034

Thus, the 95% confidence interval for the true proportion of university students who use laptop in class to take notes is (0.2839, 0.4161).

7 0
3 years ago
Read 2 more answers
What is the distance between -4.32 and 0 on the number line?
saveliy_v [14]

B looks the most reasonable

5 0
3 years ago
Read 2 more answers
What is the value of s?
beks73 [17]

Answer:

To what

Step-by-step explanation:

3 0
3 years ago
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