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3 years ago

Can anyone solve this

Mathematics

1 answer:

Maksim231197 [3]3 years ago

8 0

What is that cause its not math

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A bag contains 5 red marbles , 6 white marbles and ,5 blue marbles. Find p(green)

Nataly_w [17]

Answer:

Step-by-step explanation:

Probability of green marble = $\frac{0}{5+5+6} =\frac{0}{16}=0$

5 0

4 years ago

Hello can anyone check if my answer is correct

sleet_krkn [62]

The answer is not correct

7 0

2 years ago

Read 2 more answers

A random sample of 18 fields of barley has a mean yield of 36.4 bushels per acre and standard deviation of 7.37 bushels per acre

dexar [7]

Answer:

So, the confidence interval is [34.08, 38.72].

Step-by-step explanation:

We know that a random sample of 18 fields of barley has a mean yield of 36.4 bushels per acre and standard deviation of 7.37 bushels per acre.

We have :

$n=18\\\\\mu=36.4\\\\\sigma=7.37\\\\c=80\%$

We use the Appendix: Critical Values Tables, and we get that:

$t_{\frac{\alpha}{2}}=1.333$

We calculate the margin of error:

$E=t_{\frac{\alpha}{2}}\cdot \frac{\sigma}{\sqrt{n}}=1.333\cdot \frac{7.37}{\sqrt{18}}=2.32$

We get the boundaries of the confidence interval:

$\mu-E=36.4-2.32=34.08\\\\\mu+E=36.4+2.32=38.72\\$

So, the confidence interval is [34.08, 38.72].

6 0

4 years ago

You and your 3 friends are planning a night to watch movies.you will each bring 5 movies and then you will choose 4 to watch. Ho

Bess [88]

Answer:

Step-by-step explanation:

permutation are variations of a problem, but they are collecting movies and selecting 4 out of the 20 so it is combination

7 0

4 years ago

Natalie made a nut mixture that contains

Harman [31]

Answer:

50%

Step-by-step explanation:

10 kg of mixed nuts that contain 60% peanuts

60(10)

plus

15 kg of a different brand of mixed nuts. with x% peanuts

x(15)

That makes 25 kg with 54% peanuts

54(25)

--------------------------

Equation

60(10) + x(15) = 54(25)

600 + 15x = 1350

Subtract 600 from both sides

15x = 750

Diviede both sides by 15

x = 50

50%

4 0

3 years ago