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2 years ago

A jar contains 17 yellow and 12 green marbles. You randomly draw one marble from the jar then

Mathematics

1 answer:

dexar [7]2 years ago

3 0

Answer:

204/841

Step-by-step explanation:

17/29 times 12/29

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Simplify using order of operations 9 divided by 3 + 4 times 3 divided by 6

Alchen [17]

Answer:

$5$

Step-by-step explanation:

$1. \: 3 + 4 \times 3 \div 6 \\ 2. \: 3 + 12 \div 6 \\ 3. \: 3 + 2 \\ 4. \: 5$

7 0

3 years ago

Rewrite the following question in Standard form <br> Y=7/3x+8/5

BartSMP [9]

15y = 7x + 8
15y - 7x - 8 = 0

i am a mathematics teacher. if anything to ask please pm me

3 0

2 years ago

Round 18.159 to the nearest tenth

Mandarinka [93]

Answer:

18.2

Step-by-step explanation:

A tenth is the first decimal, on the right of your unit. 5 to the sky (round up) 4 to the floor (round down)

5 0

1 year ago

Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,

REY [17]

Answer:

a) 217

b) 1351

c) 5403

Step-by-step explanation:

Given that:

confidence interval (c) = 0.95

$\alpha =1-0.95=0.05\\\frac{\alpha }{2} =\frac{0.05}{2}=0.025$

The Z score of $\frac{\alpha }{2}$ is from the z table is given as:

$Z_{\frac{\alpha }{2} }=Z_{0.025}=1.96$

Range = $45000 - $30000 = $15000

The standard deviation (σ) is given as:

$\sigma=\frac{Range}{4} =\frac{15000}{4}=3750$

Sample size (n) is given as:

$n=(\frac{Z_{\frac{\alpha}{2} }\sigma}{E} )^2$

a) E = $500

$n=(\frac{Z_{\frac{\alpha}{2} }\sigma}{E} )^2= (\frac{1.96*3750}{500} )^2$ ≈ 217

b) $n=(\frac{Z_{\frac{\alpha}{2} }\sigma}{E} )^2= (\frac{1.96*3750}{200} )^2$ ≈ 1351

c) $n=(\frac{Z_{\frac{\alpha}{2} }\sigma}{E} )^2= (\frac{1.96*3750}{100} )^2$ ≈ 5403

7 0

2 years ago

Read 2 more answers

Knowing that you need a sample pool of 1019 students to ultimately get about 500 students in your sample, you are in a position

Allushta [10]

Answer:

Sampling interval = 9.323

Step-by-step explanation:

Given that:

Population size, N = 9500

Require sample, n = 1019

Sampling interval :

Population size / required sample size

Sampling interval = 9500 / 1019 = 9.3228

Interpretation :

In other to obtain a sample of 1019 drawn systematically from the population, a sample will be drawn at every 9.323 units from the population of 9500

6 0

3 years ago