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hichkok12 [17]
2 years ago
11

Ok so you guys i want to make an editing account but what should be the username

Mathematics
2 answers:
Travka [436]2 years ago
8 0

Answer:

crzy.editz

Step-by-step explanation:

Annette [7]2 years ago
7 0

fye.editz0nly

Step-by-step explanation:

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100 points, I need help fast!
ivolga24 [154]

a. The standard error is equal to the standard deviation divided by the square root of the sample size:

SE = (23 ppm)/√18 ≈ 5.42 ppm

b. The t statistic is given by the difference between the true and sample means, divided by the standard error:

t = (192 ppm - 180 ppm)/SE ≈ 2.21

c. The p-value is approximately 0.0204.

d. Since p < 0.05, the difference is significantly different, so we reject the null hypothesis.

e. A type I error might have occurred, since it's possible that the null hypothesis was true, but we ended up rejecting it.

4 0
2 years ago
Brian rolls 2 fair dice and adds the results from each. Work out the probability of getting a total that is prime. Answer THIS P
Vladimir [108]

Answer:

5/12 or 15/36

Step-by-step explanation:

Since he rolls two dice, he has a total probability of 6 times 6 = 36. The pairs, that he could add up to primes are (1,1), (2,1) * 2 (since he can get 1,2 as well), (1,4) * 2, (2,3) * 2, (3,4) * 2, (5, 2) * 2, (6,1) * 2, (5, 6) * 2. This is 1 + 2 + 2 + 2 + 2 + 2 + 2 + 2, which is equal to 15. This is a total of 15/36 possible ways, which is also equal to 5/12.

5 0
3 years ago
Frank invest $500 at a simple interest rate of 3%. How much interest will earn after 5 years
svet-max [94.6K]
He will earn 75 dollars


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3 years ago
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Gabriela walked to school on 16 of the 24 school days in March. Which value is equivalent to the
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Answer:

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Step-by-step explanation:

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3 years ago
A __________ is a solid figure with a rectangular base. All other faces are triangles that meet at a common vertex.
zepelin [54]

Answer:

it's caled a rectangular pyramid.

Step-by-step explanation:

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2 years ago
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