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2 years ago

What is the equation of the line shown in this graph

Mathematics

1 answer:

zepelin [54]2 years ago

5 0

The equation of the line is y = -2x + 4

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To estimate a proportion of students with a grade point average of 3.7 and higher in a college, a random sample of 200 students

VashaNatasha [74]

Answer: $(0.1481323,\ 0.2018677)$

Step-by-step explanation:

The confidence interval for population proportion :

$\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$ , where n= sample size, $\hat{p}$ = sample proportion , z*= Critical z-value.

Let p = population proportion of successes.

Given: n= 200 , $\hat{p}=\dfrac{35}{200}=0.175$

Critical z value for 95% confidence = 1.96

The 95% confidence interval for a population proportion is:

$0.175\pm (1.96)\sqrt{\dfrac{(0.175)(1-0.175)}{200}}\\\\=\ 0.175\pm (1.96)\sqrt{0.000721875}\\\\= 0.175\pm (1.96)(0.0268677)\\\\=(0.175-0.0268677,0.175+0.0268677)\\\\= (0.1481323,\ 0.2018677)$

Required confidence interval: $(0.1481323,\ 0.2018677)$

3 0

2 years ago

Simplify − 2 x × 2 x × x

shepuryov [24]

Answer:

-4x^3 (negative four x cubed)

Step-by-step explanation:

-2x X 2x X x

-4x^3

8 0

3 years ago

A recipe calls for 1/4

Viktor [21]

It should be 12 teaspoons

3 0

2 years ago

Can someone help me with this one question

erma4kov [3.2K]

Second option is the correct one
$a1 = 37 \\ an = a(n - 1) - 11$

4 0

3 years ago

Read 2 more answers

. (01.02 HC) Javier has a job installing windows. He earns a rate of $75 per day plus $8 per window installed. He also receives

Anettt [7]

Part A: Coefficient is either the 75 or 8 since it's linked with the Variable(letter) d or w. The only constant is 25
Part B: 75(5)+8(48)+25=$784 Just plug in for the variables.
Part C: Only the constant since it is a set amount and it is not changed based on days or windows installed.

6 0

3 years ago