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3 years ago

Someone make me smile

2 answers:

8 0

I’m gonna tell you a dumb joke so I hope it makes you laugh:

Me: quarantine
You: I don’t get it
Me: it’s an inside joke
You:....
I’m sorry lol but just listen to music cuz it helps me anyways I hope this made you smile

Reil [10]3 years ago

4 0

Your doing your best in school keep it upp !

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In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7.2 minutes. A 95

Elina [12.6K]

Answer: Margin of error = 6.58

Confidence interval = (26.91, 40.08)

Step-by-step explanation:

Since we have given that

Sample size n = 8

Sample mean = 33.5 minutes

Population standard deviation = 9.5 minutes

At 95% confidence interval,

α = 0.05

t = 1.96

So, Margin of error is given by

$t\times \dfrac{\sigma}{\sqrt{n}}\\\\=1.96\times \dfrac{9.5}{\sqrt{8}}\\\\=6.58$

Confidence interval would be

Lower limit:

$\bar{x}-6.58\\\\=33.5-6.58\\\\=26.91$

Upper limit:

$\bar{x}+6.58\\\\=33.5+6.58\\\\=40.08$

Hence, the interval would be (26.91, 40.08)

But at standard deviation 7.2 minutes, the confidence interval was (27.5, 39.5)

Confidence interval using the standard normal distribution is wider than the confidence interval using t distribution.

3 0

3 years ago

Please help NO LINKS!!!

kenny6666 [7]

Answer:

Step-by-step explanation:

base = 7 units

height = 12 unit

Area of triangle = $\frac{1}{2}*base * height\\$

$= \frac{1}{2}*12*7\\\\=6 * 7 \\= 42 unit^{2}$

6 0

3 years ago

Line that is parallel y=-1.25x+7

telo118 [61]

It’s 1010010183829919272 your welcome!

7 0

3 years ago

Please help will give brainliest

KatRina [158]

Hi there!

First, scientific notation is when you take a number like 15,000 or 0.0015 and turn it into a number that is less than 10 and greater than 1. What you do to make it that is you move that decimal point over to the left or right as needed. So for example, 15,000 would be 1.5 × $10^{4}$ and 0.0015 is 1.5 × $10^{-3}$ .

So if one light year is 5.88 × $10^{12}$ mi. that is just the scientific notation for 5880000000000 mi.

So if you take 5880000000000 mi. and multiply it by 11 then you get 64680000000000

5880000000000 × 11 = 64680000000000 or 6.468 × $10^{13}$

So the answer would be $\boxed{64680000000000}$ or $\boxed{6.468*10^{13} }$

Your friend, ASIAX

5 0

3 years ago

I WILL GIVE BRAINLIEST!!!!! Jackson’s car was making a rumbling noise for two weeks. He decided to take it to the mechanic to ge

almond37 [142]

Answer:

60 A

Step-by-step explanation:

because the flat fee will always be 60 which is why its y and not x , x is 35 for every hour

3 0

3 years ago