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2 years ago

6

A bag contains one blue two green three yellow and three red marbles as shown what is the probability of drawing a red marble ou

t of the bag without looking

1 answer:

hram777 [196]2 years ago

7 0

Answer:

1 in 2

Step-by-step explanation:

total marbles: 1+2+3+3 = 6

red marbles: 3

3/6 = 1/2 = 0.5

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What is the slope of y = -2x and what does this mean?

olga_2 [115]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

You have drawn a simple random sample of 36 college students, asking each student how much rent they pay per month. You obtain a

Karo-lina-s [1.5K]

Answer:

$573-1.690\frac{22}{\sqrt{36}}=566.8033$

$573+1.690\frac{22}{\sqrt{36}}=579.1967$

And the 90% confidence interval would be between [566.80 and 579.20]

Step-by-step explanation:

Information given

$\bar X=573$ represent the sample mean

$\mu$ population mean (variable of interest)

s=22 represent the sample standard deviation

n=36 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=36-1=35$

The Confidence level is 0.90 or 90%, the significance would be $\alpha=0.1$ and $\alpha/2 =0.05$ , and the critical value for this case would be $t_{\alpha/2}=1.690$

And replacing we got:

$573-1.690\frac{22}{\sqrt{36}}=566.8033$

$573+1.690\frac{22}{\sqrt{36}}=579.1967$

And the 90% confidence interval would be between [566.8033 and 579.1967]

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3 years ago

Solve the polynomial equation x3 + 7x2 − 16x −112 = 0 and select the correct answer below.

prohojiy [21]

X^3 + 7*x^2 + -16*x-112
=(x + 4)*(x + 7)*(x - 4)

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3 years ago

Question from my math test

frutty [35]

Answer:

The manager skipped June

Step-by-step explanation:

In the first bar we can see the sales are from

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Then,

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2 years ago

Two numbers are in the ratio 3:7

lbvjy [14]

Answer:

98 And 18 i think

Step-by-step explanation:

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2 years ago