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3 years ago

There is a bag filled with 5 blue, 6 red and 2 green marbles.

Mathematics

2 answers:

barxatty [35]3 years ago

8 0

2/13 but idk if that’s correct

uranmaximum [27]3 years ago

5 0

The probability is 2/13

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Susanne checks the temperature at 10:00 p.m. she notices that, if the temperature falls by 3 more degrees, it will break the rec

goldfiish [28.3K]

Answer:

Susanne checks the temperature at 10:00 p.m. she notices that, if the temperature falls by 3 more degrees, it will break the record low temperature for that day, which is 26 degrees.

Step-by-step explanation:

3 0

3 years ago

Evaluate the following expression 4×[1+(19+26)÷9]

KatRina [158]

I think it is 24...Im not sure tho

4 0

4 years ago

Read 2 more answers

If it takes 5.7 gallons an hour how many cups will it take a minute

tino4ka555 [31]

1 gallon = 16 cups
1 hour = 60 min

16 cups = 60 min
5 gallons =180 min/ 3 hrs

1 cup = 3.75 minutes

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3 years ago

Read 2 more answers

Suppose you take an SRS of size 1000 of Connecticut students eligible to take the SAT and find that 85% plan to take the SAT dur

nadezda [96]

Answer:

$\mu_{p}=p=0.81$

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

So under the null hypothesis the mean for the population proportion is p

$\mu_{p}=p=0.81$

And the standard deviationis given by:

$\sigma_{p}=\sqrt{\frac{p_0(1-p_o)}{n}}=\sqrt{\frac{0.81(1-0.81)}{1000}}=0.0124$

7 0

3 years ago

Solve for j: J/-2+7=-12

Anestetic [448]

Answer:

J=38

Step-by-step explanation:

Subtract 7 to both sides so J/-2=-19

Then multiply -2 to both sides to get -19 times -2

That equals to 38

6 0

3 years ago